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Built on ISFDB, Wikipedia, Wikidata and Open Library. Curated reading orders carry their reasoning on the page; the rest follow publication order. Data sources & licenses

© Loreful · data: ISFDB · CC BY

More like Ally

anchored on:science fictionaliensother star systemsfar futurefirst contactwar+2 more

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Mood

The mood the book leaves you in.

  • The reading experience is propelled by journeys, exploration, and physical risk; excitement and forward momentum dominate over dread or introspection.
  • Joy and loss are deliberately mixed; the resolution grants characters something real while taking something else away, leaving warmth and sorrow together.
  • The book demands work from the reader — dense prose, difficult structure, unfamiliar ideas, or morally uncomfortable material — as part of its intended effect.
  • Grim events, cruelty, or despair dominate the atmosphere, and the book does not soften them with comfort or comic relief.
  • The atmosphere is quietly unsettling — wrongness, unease, and the uncanny pervade the book without necessarily escalating into overt horror.
  • The book is built to move the reader; character feeling is foregrounded and major scenes aim at a strong emotional response.
  • Humor is a primary aim and the prose plays for laughs — comic situations, wit, or dialogue produce sustained comedy, not occasional levity.
  • The book insists that things can improve; effort and decency are shown to matter, and the arc bends toward better outcomes even through hardship.
  • The book teaches as it goes — real facts, history, science, or craft are conveyed in enough depth that learning is part of the reading experience.
  • The book is designed to uplift and motivate, presenting perseverance or achievement in a way that invites the reader to aspire or act.
  • The overall register is cheerful and easygoing; stakes are kept gentle and the book avoids dwelling on pain or dread.
  • Withheld information drives the experience; the book sustains enigmas and secrets the reader wants resolved, whatever its genre.
  • The book is contemplative and inward-looking, giving more weight to thought, memory, and meaning than to external events.
  • The book works as comfort reading — low tension, a soothing pace, and an atmosphere the reader can unwind in.
  • Grief, loss, or melancholy set the dominant register, and the book lets sorrow stand rather than resolving it into comfort.
  • Sustained suspense is the point; the book keeps the reader braced for what happens next through danger, pressure, or impending revelation.
  • Playful invention and charm define the register — fanciful conceits, light absurdity, and a narration that delights in its own oddity.

About

What the story runs on.

  • Stories in which extraterrestrial beings are central — as characters, cultures, or the object of the plot.
  • Stories about venturing into space to explore — survey missions, astronauts, and the frontier of the unknown beyond Earth.
  • Stories about minds with paranormal abilities — telepathy, telekinesis, precognition, empathy — and how societies handle those who have them.
  • Stories structured as a quest — a journey undertaken to find, deliver, or destroy something of great import.
  • Stories in which staying alive against nature, catastrophe, or scarcity is the central problem.
  • Stories of lovers kept apart by law, family, faith, or station, where the obstacle to love is the plot.
  • Stories of growing up — a young protagonist crossing from childhood into adult knowledge and responsibility.
  • Stories about who a character truly is — self-discovery, doubled lives, and the search for a self.
  • Stories driven by maneuvering for power — factions, conspiracies, and statecraft conducted in shadow.
  • Stories about rising against rulers — uprisings, resistance movements, and revolutions and their aftermaths.
  • Stories in which war itself is the subject — combat, occupation, and what warfare does to soldiers and civilians.
  • Stories organized around investigating a killing — the case, the clues, and the pursuit of the killer, in any genre's clothing.

Shelf

Where it sits in the library.

    • Fiction built on magic or other supernatural elements that have no scientific explanation.
    • Secondary-world fantasy at large scale, where the fate of nations or the world turns on the protagonists' struggle.
    • Fantasy set in a recognizably modern city or contemporary world where the supernatural intrudes on everyday life.
    • Fantasy that blends in horror's atmosphere and imagery, keeping a fantastical frame around grim or frightening material.
    • Action-driven fantasy following warriors or rogues with personal stakes against sorcerous threats, rather than world-spanning conflicts.
    • Fantasy set in a real historical period or a close analogue of one, with magic woven into the era.
    • Fantasy in which protagonists cross from the ordinary world into another world through a portal or similar passage.
    • Fiction that retells or reworks a traditional fairy tale in a new form or setting.
    • Fantasy drawing directly on myths, legends, and folklore, retelling them or building on their figures and logic.
    • Fantasy of ghosts, vampires, shapeshifters, psychics, and similar phenomena, usually set in an otherwise ordinary world.
    • Fiction mixing science-fictional trappings with overtly magical or impossible elements in one setting.
    • Low-stakes fantasy emphasizing comfort, community, and everyday pleasures over conflict and peril.
    • Speculative fiction of pervasive moral ambiguity, violence, and cynicism that rejects heroic conventions — fantasy and SF alike.
      • Fiction that extrapolates from science and technology — future societies, space travel, or speculative inventions — within at least nominally natural laws.
      • Science fiction of interstellar scope — starships, galactic polities, and adventure across star systems.
      • Science fiction committed to scientific rigor, where technical plausibility constrains the story.
      • Science fiction centered on armed forces and warfare, told largely from a military point of view.
      • Science fiction of networked, corporate-dominated near futures, pairing high technology with social decay.
      • Science fiction styled on nineteenth-century steam-powered technology, often in a Victorian or pseudo-Victorian setting.
      • Fiction depicting an oppressive or catastrophic society, presented as a warning.
      • Fiction set after civilization's collapse, following survivors in the ruins of the old world.
      • Fiction in which characters move between past and future, and the mechanics or consequences of that travel drive the plot.
      • Fiction exploring a world where a historical event went differently and history diverged from ours.
      • Science fiction about humanity's first encounter and communication with an alien intelligence.
      • Science fiction in which extraterrestrial forces attack or occupy Earth and humanity resists.
      • Fiction whose primary aim is to frighten or unsettle the reader through dread, menace, or the monstrous.
      • Horror of vast, indifferent, incomprehensible entities before which humanity is insignificant, in the Lovecraft tradition.
      • Horror of decaying houses, buried family secrets, and oppressive atmosphere in the Gothic literary tradition.
      • Horror centered on hauntings and the returning dead.
      • Horror located in the mind — paranoia, obsession, and unreliable perception rather than external monsters.
      • Horror built around the reanimated dead and survival amid their outbreaks.
      • Horror defined by explicit, transgressive gore that refuses to cut away from violence.
      • Speculative fiction of the strange and uncanny that resists both natural explanation and standard genre categories.
      • Fiction organized around solving a crime or puzzle, typically following an investigator toward the identification of a culprit.
      • A puzzle-first mystery that lays out clues so the culprit's identity can be deduced before the reveal.
      • Crime fiction of moral ambiguity, fatalism, and hard-edged style, set among the corrupt and the doomed.
      • A mystery following the realistic routines of police work — forensics, interviews, and case-building.
      • A gentle mystery with an amateur sleuth, a small community, and violence kept off the page.
      • A mystery set in a past era, where the investigation works within that period's methods and society.
      • Fast-paced fiction driven by imminent danger, pursuit, or high-stakes conspiracy, built to sustain tension.
      • A thriller of espionage — agents, tradecraft, and intelligence services in conflict.
      • A thriller centered on lawyers and the courtroom, where litigation carries the suspense.
      • A thriller driven by detailed contemporary or near-future technology, often military or scientific.
      • A thriller whose tension comes from mental states and manipulation between characters rather than external action.
      • Fiction whose central plot is a romantic relationship and its development toward an emotionally satisfying resolution.
      • Romance in which one or both partners are supernatural beings, blending fantasy elements into the love story.
      • A fantasy-romance hybrid in which the romantic arc and the fantasy plot carry equal weight.
      • Romance set in a past era, with courtship shaped by the period's society and manners.
      • Romance set in the present day, without supernatural or historical elements.
      • Fiction set in a real past period, where the historical setting materially shapes characters and events.
        • General and literary fiction emphasizing prose style, character interiority, or formal ambition over genre plot conventions.
        • Fiction in a realistic world where magical events occur and are treated as ordinary, in the tradition of Latin American literature.
        • Fiction that ridicules people, institutions, or society in order to criticize them.
        • Fiction of dreamlike, irrational imagery and logic that breaks from realistic representation.
        • Fiction that plays with narrative convention through metafiction, fragmentation, and self-reference.
        • Fiction propelled by journeys, exploration, and physical peril, where action and survival carry the plot.
        • Adventure fiction of ships and seafaring — naval engagements, voyages, and life at sea.
        • Fiction of the American frontier West — gunmen, ranchers, and lawmen, typically in the late nineteenth century.
        • Fiction centered on soldiers, campaigns, and the experience of warfare, historical or imagined.
          • Fiction written primarily to amuse, using comedic situations, wit, or parody as its organizing principle.
            • Multi-generational fiction following a family or dynasty across decades, with inheritance and kinship as the through-line.
              • Fiction whose world runs on explicit game mechanics — levels, stats, and skills that characters can see and exploit.
                • Fiction about costumed or superpowered heroes and their conflicts with comparable villains.

                Practical

                How long a commitment, whether it stands alone, and whether it has finished.

                Tap a chip to ask for it · tap again to rule it out · once more to clear. Numbers show what would be left.

                • Cover of Wess'har Wars
                  Wess'har Wars

                  series · 7 books · 2004

                  similar byother star systemsfar futuretensealiensscience fictionecological collapsefirst contact+3 more

                  The Wess'har Wars series is a six-book science fiction novel series written by author Karen Traviss and is set several hundred years in the future. It involves humanity's contact with a number of alien species with conflicting interests and beliefs, while her central character, Shan Frankland, is caught in the middle of a coming conflict. The series has a focus on environmental impact. All six novels were published by Eos, an imprint of HarperCollins: City of Pearl, Crossing the Line, The World Before, Matriarch and Ally. The last book of the series, Judge was released on March 25, 2008.

                • Cover of Moties
                  Moties

                  series · 4 books · 1974

                  part of CoDominium

                  similar byfar futureother star systemsscience fictionaliensfirst contactspace opera+2 more

                  Larry Niven and Jerry Pournelle's The Mote in God's Eye (1974) depicts humanity's first contact with an alien species, the Moties, set within the far-future interstellar setting of Pournelle's codominium future history. The Gripping Hand continues that first-contact crisis years later, and Outies, written by J. R. Pournelle, carries the story forward into a new generation. Together the three books trace an escalating encounter between human and Motie civilizations within the codominium universe.

                • Cover of Dune
                  Dune

                  series · 20 books · 1963

                  part of Dune Universe

                  similar byfar futureother star systemsscience fictionspace opera+2 more

                  Frank Herbert's Dune Chronicles opens with 1965's Dune, set on the desert planet Arrakis where House Atreides takes control of the only source of the vital spice melange and young Paul Atreides is pulled into a struggle over its politics and religion. Herbert carried the story forward across five further novels — Dune Messiah, Children of Dune, God Emperor of Dune, Heretics of Dune, and Chapterhouse: Dune — following Paul's line over the following millennia, before Brian Herbert and Kevin J. Anderson later extended the saga. Many other editions of these six novels are omnibus and box-set repackagings rather than separate stories.

                • Cover of Conquerors
                  Conquerors

                  series · 3 books · 1994

                  similar bytenseother star systemsfar futurealiensscience fictionwarfirst contact+1 more

                  Conquerors is Timothy Zahn's military science-fiction trilogy following human fighter pilots and their commanders through an interstellar war that neither side fully understands, told across Conquerors' Pride, Conquerors' Heritage, and Conquerors' Legacy. Zahn alternates perspective between the human and alien chains of command, using the shifting viewpoints to slowly unpick why the conflict started in the first place. It's contact-and-conflict SF built around miscommunication rather than straightforward invasion.

                • Cover of Chanur
                  Chanur

                  series · 7 books · 1982

                  part of Alliance-Union Universe

                  similar bytensefar futureother star systemsaliensscience fictionspace opera+1 more

                  The Chanur novels are a series of five science fiction novels, forming three separate stories, written by American author C. J. Cherryh and published by DAW Books between 1982 and 1992. The first novel in the series is The Pride of Chanur (1982), which was nominated for both the Hugo and Locus Awards in 1983. The Pride of Chanur, originally a stand-alone story, was followed by the Chanur's Venture trilogy, Chanur's Venture (1984), which was shortlisted for a Locus Award in 1985; The Kif Strike Back (1985) and Chanur's Homecoming (1986). These were followed by a later sequel, Chanur's Legacy (1992). The five novels were also published in two omnibus editions: the first three in The Chanur Saga in 2000 and the next two in Chanur's Endgame in 2007.

                • Cover of Man-Kzin Wars
                  Man-Kzin Wars

                  series · 84 books · 1986

                  part of Known Space

                  similar bytensefar futurealiensscience fictionother star systemswar+1 more

                  The Man–Kzin Wars is the name of a series of military science fiction anthologies as well as the name of the first book in the series. The short stories detail the eponymous conflicts between mankind and the Kzinti, set in Larry Niven's Known Space universe. However, Niven himself has written only a small number of the stories; most were written by other science fiction writers, as Niven opened this part of the Known Space to collaboration in the form of a shared universe. The cover art for the books in the series is created by Stephen Hickman.

                • Cover of Dune Universe
                  Dune Universe

                  universe · 78 books · 1963

                  Start hereDune · Start here

                  similar byfar futureother star systemsscience fictionspace opera+1 more

                  Arrakis. Dune. The desert planet, where empire runs on a single substance: the spice melange, which folds space, prolongs life, and unlocks prescience, and which exists nowhere else in the known universe. Frank Herbert's saga is a meditation dressed as an adventure — feudal houses and a secret sisterhood, engineered messiahs and the patient ecology of a world without water, all turning on the terrible gravity of who commands the spice. It reads like scripture and schemes like a war room, ten thousand years hence, among people who have outlawed the thinking machine and made instruments of themselves instead. At its heart stand Herbert's original six — Dune, Dune Messiah, Children of Dune, God Emperor of Dune, Heretics of Dune, Chapterhouse: Dune — a single deepening arc across millennia, arguing the whole way between prophecy and free will. Around that spine his son Brian Herbert and Kevin J. Anderson have raised a vast prequel architecture: Prelude to Dune, tracing the great houses a generation before Paul; Legends of Dune, reaching back to the crusade that broke the machines; the Schools of Dune cycle on the founding of Bene Gesserit, Mentat, and Navigator; the Caladan Trilogy and Heroes of Dune filling years the originals left in shadow. Many hands, dozens of volumes, one desert. What sets Dune apart is its refusal of the simple: religion is manufactured, heroes are hazards, and the sand itself — worm, water, ecology — acts as a political power. Begin where the universe did, with Frank Herbert's Dune (1965), and read the original six in order; you need nothing else to feel the full weight. The prequels are a country to explore afterward, taken by era. Beginnings are delicate times.

                • Cover of Armor
                  Armor

                  John Steakley · standalone novel · 1984

                  similar bytenseother star systemsfar futurescience fictionalienswar

                  Armor is a military science fiction novel by John Steakley. It features the military use of exoskeletons and insect-like alien enemies but concentrates on the psychological effects of violence on human beings.

                • Cover of A Darkling Sea
                  A Darkling Sea

                  James L. Cambias · standalone novel · 2014

                  similar bytenseother star systemsfar futurealiensscience fictionwarfirst contact+1 more

                  On the planet Ilmatar, under a roof of ice a kilometer thick, a team of deep-sea diving scientists investigates the blind alien race that lives below. The Terran explorers have made an uneasy truce with the Sholen, their first extraterrestrial contact: so long as they don't disturb the Ilmataran habitat, they're free to conduct their missions in peace. But when Henri Kerlerec, media personality and reckless adventurer, ends up sliced open by curious Ilmatarans, tensions between Terran and Sholen erupt, leading to a diplomatic disaster that threatens to escalate to war. Against the backdrop of deep-sea guerrilla conflict, a new age of human exploration begins as alien cultures collide. Both sides seek the aid of the newly enlightened Ilmatarans. But what this struggle means for the natives, and the future of human exploration is anything but certain.

                • Cover of The Final Architecture
                  The Final Architecture

                  series · 6 books · 2021

                  similar bytensefar futurealiensother star systemsscience fictionwarspace opera

                  The Final Architecture is a series of science fiction novels by British writer Adrian Tchaikovsky. It contains the books Shards of Earth, Eyes of the Void, and Lords of Uncreation. The series focuses on a group of humans fighting against the mysterious Architects, who destroy inhabited planets. The series has been well-received critically, with Shards of Earth winning the 2021 BSFA Award for Best Novel. The entire series was a finalist for the 2024 Hugo Award for Best Series.

                • Cover of Pushing Ice
                  Pushing Ice

                  Alastair Reynolds · standalone novel · 2005

                  similar bytensefar futurescience fictionother star systemsaliensfirst contact+1 more

                  When Saturn's moon Janus suddenly takes off into interstellar space, an ice mining spaceship sent to investigate finds itself swept along into distant space until it ends up trapped in a gigantic alien structure, wherein the crew must prepare to reside for the foreseeable future.

                • Cover of Janissaries
                  Janissaries

                  series · 4 books · 1979

                  similar bytenseother star systemsfar futurescience fictionwar+2 more

                  Janissaries are an American series of military and political-based science fiction novels are set in an interstellar confederation of races, in which humans are a slave race entrusted with military affairs and law enforcement. They were written by Jerry Pournelle, with Roland J. Green co-authoring the second two books.

                • Cover of The Winged Man
                  The Winged Man

                  A. E. van Vogt & E. Mayne Hull · standalone novel · 1966

                  similar bytenseother star systemsfar futurescience fictionalienswarspace opera

                  The crew of the submarine Sea Serpent and the submarine itself are taken by a strange winged man to the year 24,999, where a war is going on between the winged men and gigantic fishmen living under the sea. The winged men want the crew of the Sea Serpent to destroy the fishmen with their submarine, the only thing capable of going under water and destroying the city of the fishmen.

                • Cover of Playing God
                  Playing God

                  Sarah Zettel · standalone novel · 1998

                  similar bytenseother star systemsfar futurealiensscience fictionecological collapse+1 more

                  Representatives of an Earth corporation which is contracted to clean up the badly degraded planet of an alien matriarchal species find their task complicated by the powerful tendency towards interracial hostility which evolved as a result of the aliens' honeybeelike genetics.

                • Cover of Starship Troopers
                  Starship Troopers

                  Robert A. Heinlein · standalone novel · 1959

                  similar byfar futureother star systemsscience fictionwaraliens+2 more

                  Starship Troopers is a military science fiction novel by American writer Robert A. Heinlein. Written in a few weeks in reaction to the US suspending nuclear tests, the story was first published as a two-part serial in The Magazine of Fantasy & Science Fiction as Starship Soldier, and published as a book by G. P. Putnam's Sons on November 5, 1959.

                • Cover of Slow Train to Arcturus
                  Slow Train to Arcturus

                  Eric Flint & Dave Freer · standalone novel · 2008

                  similar bytensefar futurealiensscience fictionother star systemsfirst contactspace opera+1 more

                  Sending a spaceship to rendezvous with an enormous vessel made up of a series of globular habitats approaching its star system, the aliens find a savage race calling themselves "humans" who promptly slaughter the exploration team, except for a single survivor who escapes to another habitat, where he finds more friendly humans whose help he requires to get back to his own ship.

                • Cover of The Dosadi Experiment
                  The Dosadi Experiment

                  Frank Herbert · standalone novel · 1977

                  similar bytenseother star systemsfar futurescience fictionaliensspace opera

                  From the flaps of the Berkley Putnam first edition: "In his first new work of science fiction since the best-selling Children of Dune, Frank Herbert returns to his world of Whipping Star, and involves Jorj X. McKie, Saboteur Extraordinary, in a new intrigue. In Whipping Star, McKie discovered that some of the stars in the universe are actually intelligent, super-powerful beings, and was able to befriend one of them, the star Alcyone - affectionately known as Fannie Mae. As The Dosadi Experiment opens, McKie is assigned to investigate the planet Dosadi, which is isolated from the rest of the galaxy by a "god-wall," a barrier set up by one of the intelligent stars. Dosadi is rumored to be an experimental planet, and the experimenters are the froglike Gowachin, whose culture is founded upon a strange legal system in which McKie is the only human ever trained. He learns that humans and Gowachin have been placed on Dosadi, without their consent, for an experiment that could last centuries: an experiment in extreme overcrowding. But this monstrous plot is apparently out of control, and it seems the Gowachin may be prepared to destroy Dosadi rather than expose its secret, thus breaking the peace among the races, and starting the first interstellar war. But this is just the beginning. When McKie finally reaches Dosadi he discovers that the Dosadis have taken control of their own evolution and produced a competitive, highly evolved elite, of both humans and Gowachin, who have been able to extrapolate the existence of a universe beyond the god-wall and hate whoever has imprisoned them like this. They plan to break out and avenge themselves on the galaxy."

                • Cover of The Kassa Gambit
                  The Kassa Gambit

                  M. C. Planck · standalone novel · 2013

                  similar bytenseother star systemsfar futurealiensscience fictionfirst contactspace opera+1 more

                  "Centuries after the ecological collapse of Earth, humanity has spread among the stars. Under the governance of the League, our endless need for resources has driven us to colonize hundreds of planets, all of them devoid of other sentient life. Humanity is apparently alone in the universe. Then comes the sudden, brutal decimation of Kassa, a small farming planet, by a mysterious attacker. The few survivors send out a desperate plea for aid, which is answered by two unlikely rescuers. Prudence Falling is the young captain of a tramp freighter. She and her ragtag crew have been on the run and living job to job for years, eking out a living by making cargo runs that aren't always entirely legal. Lt. Kyle Daspar is a police officer from the wealthy planet of Altair Prime, working undercover as a double agent against the League. He's been undercover so long he can't be trusted by anyone--even himself. While flying rescue missions to extract survivors from the surface of devastated Kassa, they discover what could be the most important artifact in the history of man: an alien spaceship, crashed and abandoned during the attack. But something tells them there is more to the story. Together, they discover the cruel truth about the destruction of Kassa, and that an imminent alien invasion is the least of humanity's concerns. "--

                • Cover of Fractalverse
                  Fractalverse

                  series · 2 books · 2020

                  similar bytensefar futureother star systemsscience fictionaliensfirst contactspace opera

                  To Sleep in a Sea of Stars opens Christopher Paolini's Fractalverse with Kira Navárez, a xenobiologist whose survey of an unexplored planet triggers first contact with an ancient alien intelligence, dragging her and the wider human Alliance into a wider interstellar conflict for survival. Fractal Noise, a parallel entry, follows a separate crew investigating a mysterious signal-emitting structure on another world within the same universe. Both books were published between 2020 and 2023.

                • Cover of The Rapture Effect
                  The Rapture Effect

                  Jeffrey A. Carver · standalone novel · 1987

                  similar bytensefar futurescience fictionother star systemsaliensfirst contact+1 more

                  The Rapture Effect is a novel by Jeffrey A. Carver published by Tor Books in 1987.

                • Cover of Ender Wiggin
                  Ender Wiggin

                  series · 14 books · 1977

                  part of Ender's Game Universe

                  similar byfar futurescience fictionother star systemsaliens+2 more

                  Orson Scott Card's Ender's Game (1985, expanded from his 1977 novella) follows child prodigy Andrew "Ender" Wiggin as he is recruited into a military training program built to prepare Earth's defenses for an anticipated third war against an insectoid alien species known as the Formics. The saga continues years later through Speaker for the Dead and Xenocide, following an older Ender as he confronts the moral weight of his role in that earlier conflict, and concludes the core arc in Children of the Mind, with Ender in Exile filling in the years between the first two books. Set within the wider Ender's Game universe, the series shifts from military coming-of-age story to slower, more philosophical science fiction as it progresses.

                • PU
                  Probability Universe

                  series · 4 books · 1996

                  similar bytensefar futureother star systemsscience fictionalienswar+2 more

                • Cover of Cycle of Fire
                  Cycle of Fire

                  Hal Clement · standalone novel · 1957

                  similar bytenseother star systemsfar futurealiensscience fiction+1 more

                  After his ship crashed on the inhospitable planet Abyorman, Nils Kruger had spent weeks wandering across the face of the planet.suffering from blistering heat, the searing cold of an alien climate. Now he had found a fellow wanderer, Dar, an alien castaway. They may both die. The human opts to do something about it. Dar, who knows the time of his death in advance, opts to do nothing. Which of them is right? Perhaps both

                • Cover of Naked to the Stars
                  Naked to the Stars

                  Gordon R. Dickson · standalone novel · 1961

                  similar bytenseother star systemsfar futurescience fictionalienswar

                  The subject of the cosmic soldier has become a matter of concern for the science fiction reader. With the award-winning success of The Forever War, and with the great classic novels of Gordon R. Dickson's genetically bred mercenaries, the Dorsai, it is clear that the role of a fighter in a universe of expanding technology and competing alien intelligences is on science fiction's orders of the day. Gordon R. Dickson has been the master of that field, and his novel, Naked to the Stars, is one of his masterpieces. Long out of print, it is the story of a star soldier who, during a battle against a non-human foe on a far planet, somehow lost sixteen hours from his memory. Discharged for the potential danger those lost hours might have programmed, Cal Truant made it his fixation to uncover the mystery buried in his mind - to find out what had happened in those missing hours - and block the peril it might present to his fellow troopers, to his war command, and to the planet for which they fought - Earth.