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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 Time Trials

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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 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 in which a friendship — its making, testing, or loss — is the emotional center.
  • 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 in which a buried family truth — hidden parentage, crimes, or shames — surfaces and reorders the present.
  • Stories driven by maneuvering for power — factions, conspiracies, and statecraft conducted in shadow.
  • 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 The Science Fiction Hall of Fame
                  The Science Fiction Hall of Fame

                  series · 11 books · 1895

                  similar byscience fiction

                • Cover of H. G. Wells' War of the Worlds
                  H. G. Wells' War of the Worlds

                  universe · 65 books · 1898

                  Start hereThe War of the Worlds · Start here

                  similar byscience fiction+1 more

                  No one would have believed, in the closing years of the nineteenth century, that human affairs were being watched keenly and closely from the timeless worlds of space. And then the cylinders fell. H. G. Wells' War of the Worlds opens in the quiet of the Surrey commons, where a falling star proves to be the first Martian craft — and from the pit rise the towering tripods, the Heat-Ray, the choking Black Smoke and the creeping red weed, wielded by minds that regard mankind much as we regard the creatures we boil for supper. This is invasion rendered as natural disaster: cold, methodical, and vast beyond argument. Wells' 1898 novel is the seed; everything else grows from that Martian soil. The catalogue gathers direct sequels and continuations alongside a wide field of other hands. In War of the Worlds: Global Dispatches the invasion is retold across the whole planet through the eyes of Twain, Verne, Tolstoy, Lowell and Kipling; in the Manly Wade and Wade Wellman crossover, Sherlock Holmes, Watson and Professor Challenger take the field against the machines; and Scott Washburn's Great Martian War stretches the fighting into a decades-long alternate history of steam, artillery and grinding attrition. It is a loose shared world — no single decreed sequence, many voices answering one calamity. What sets this world apart is its refusal of heroics: the invaders fall not to generals but to the smallest things of Earth, humbling and indifferent. Begin, always, with Wells' original novel — it is short, and it is the ground every later book stands upon. From there follow your appetite: Global Dispatches for the panorama, the Holmes campaign for adventure, Washburn for the long war.

                • Cover of Future History
                  Future History

                  series · 42 books · 1939

                  completed

                  similar byscience fiction+2 more

                  The Future History is a series of science fiction stories written by American author Robert A. Heinlein (1907–1988). It describes a projected future of the human race from the middle of the 20th century through the early 23rd century. The term Future History was coined by John W. Campbell Jr. in the February 1941 issue of Astounding Science Fiction. Campbell published an early draft of Heinlein's chart of the series in the May 1941 issue.

                • K
                  Kairos

                  series · 11 books · 1962

                  completed

                  similar byscience fiction+2 more

                  The Time Quintet is a science fantasy series of five young adult novels written by American author Madeleine L'Engle and made up of A Wrinkle in Time (1962), A Wind in the Door (1973), A Swiftly Tilting Planet (1978), Many Waters (1986), and An Acceptable Time (1989).

                • Cover of Dune
                  Dune

                  series · 20 books · 1963

                  part of Dune Universe

                  similar byscience fiction+1 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 Forever War
                  Forever War

                  series · 10 books · 1972

                  similar byscience fiction+1 more

                  Joe Haldeman's The Forever War (1974) follows a soldier conscripted into a centuries-long interstellar war against the alien Taurans, using relativistic space travel so that months spent in transit correspond to years or decades passing back on Earth. Haldeman later returned to the same conflict in Forever Peace (1997), a thematically connected but separate story, and Forever Free (1999), a direct sequel set years after the original war's end. The first novel won the Hugo, Nebula, and Locus awards and is considered a foundational work of military science fiction.

                • Cover of Alliance-Union Universe
                  Alliance-Union Universe

                  universe · 173 books · 1976

                  Start hereCompany Wars · The central sequence

                  similar byscience fiction+2 more

                  The dark between the stars belongs to no one, and everyone who lives out here knows it: the merchanter Families hauling cargo between stations that cannot feed themselves, the Earth Company clutching at colonies it can no longer supply, the Union breeding its cloned azi to settle worlds faster than birth allows. C. J. Cherryh's Alliance-Union is a future history of humankind's spread across the third and fourth millennia, told from inside the pressure — no clean empires, only stations, ships, treaties, and the people caught in the machinery of who holds the jump-points. The sequence runs from the first laborious pre-FTL stations through the Company Wars, the independence struggle that breaks over Pell in Downbelow Station (Hugo, 1981), to the genetics and cold politics of Union's homeworld in Cyteen (Hugo, 1988) and its sequel Regenesis. Around that spine cluster the merchanter novels of trader Families, the Faded Sun trilogy of human envoys among the martial alien Mri, and the Chanur books, narrated from the hierarchical, whiskered viewpoint of the hani. On the isolated world of Merovin, the Merovingen Nights anthologies open the setting to other hands — Mercedes Lackey, Janet and Chris Morris, Nancy Asire — a shared world braided into the whole. What sets it apart is intimacy at scale. Cherryh drops you without a map into a single skull and lets you assemble the politics from what that person fears and bargains for; the aliens are genuinely alien, loyalty is always provisional, and the real antagonist is usually logistics. Most books stand alone, in her words, "like real history." The surest way in is Downbelow Station — the war seen from one besieged station — then Cyteen, for the mind that shaped the other side.

                • Cover of Timeline
                  Timeline

                  Michael Crichton · standalone novel · 1999

                  similar bysurvivalscience fictiontime traveladventuroustense

                  Timeline is a science fiction novel by American writer Michael Crichton, his twelfth under his own name and twenty-second overall, published in November 1999. It tells the story of a group of history students who travel to 14th-century France to rescue their professor. The book follows in Crichton's long history of combining science, technical details, and action in his books, this time addressing quantum and multiverse theory.

                • Cover of Forerunner
                  Forerunner

                  series · 5 books · 1960

                  completed

                  similar byscience fiction+1 more

                  Forerunner and its sequel, Forerunner: The Second Venture, follow a young woman on an alien world who joins forces with an off-world traveler on a dangerous search for relics of a vanished, ancient civilization, hoping to find clues to how civilization itself began. It is a self-contained two-book adventure by Andre Norton rather than part of a longer sequence, later gathered as the omnibus The Forerunner Factor.

                • Cover of State / Leshy Circuit
                  State / Leshy Circuit

                  series · 9 books · 1969

                  similar byscience fiction+2 more

                • Cover of Orion
                  Orion

                  series · 14 books · 1977

                  completed

                  similar byscience fictiontime traveladventurous

                • Cover of Whoniverse
                  Whoniverse

                  universe · 2034 books · 1964

                  Start hereTimewyrm: Genesys · Start here

                  similar byscience fiction+1 more

                  Somewhere a blue police box that has no business existing folds a whole world in behind one door, and an old traveller wearing a brand-new face steps out onto a beach, a battlefield, the last warm afternoon of a dying sun. The Whoniverse is all of time and space and the wanderer who refuses to sit still inside it — the Doctor, who dies only to change shape and carry on, gathering friends across every century and losing rather more of them than the adventures like to admit. It runs on curiosity, mercy, and the unshakeable conviction that no one small should be left to the monsters. On the page it is vast and gloriously many-handed. It begins with the Target novelizations, pocket retellings of the television serials — Terrance Dicks alone wrote scores of them — that taught a generation to hear the show in prose. When the screen went dark the books carried the story on: the Virgin New Adventures walked the Seventh Doctor into darker, stranger country and gave the world the archaeologist Bernice Summerfield; BBC Books answered with ranges for the Eighth Doctor and every past incarnation, before the 2005 revival brought the New Series Adventures. Around the edges cluster the spin-offs — Bernice's own long saga, Paul Magrs's gin-soaked interdimensional diva Iris Wildthyme, the pharaoh-companion Erimem, the grown-up Cardiff shadows of Torchwood — steered across decades by hands like Justin Richards and Stephen Cole. Nothing here demands to be read in order, and that is rather the point: it is a world you drop into, not a staircase you climb. The register shifts with every author and every Doctor — high adventure, cosmic dread, farce, elegy, sometimes inside one book — bound together only by that restless kindness. Begin with the Doctor you already half-remember: a Target novelization of a favourite serial, or a New Series Adventure for whichever face first caught you. Then just leave the door open.

                • Cover of Heechee
                  Heechee

                  series · 19 books · 1972

                  completed

                  similar byscience fiction+1 more

                  The Heechee Saga, also known as the Gateway series, is a series of science fiction novels and short stories by Frederik Pohl. The Heechee are an advanced alien race that visited the Solar System hundreds of millennia ago and then mysteriously disappeared. They left behind bases containing artifacts, including working starships, which are discovered and exploited by humanity.

                • Cover of Maurai
                  Maurai

                  series · 6 books · 1959

                  completed

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                  The Maurai series is a series of short stories and a novel by Poul Anderson set in a resource depleted, post-apocalyptic earth several centuries in the future. The series is named after its most frequent protagonists, citizens of the Maurai Federation. The Maurai dominate the Pacific and Indian Oceans. Fearful of the social and ecological implications of a return to large-scale industrial society, they use their considerable might and covert resources to prevent other nations from developing nuclear power.

                • Cover of The Puppet Masters
                  The Puppet Masters

                  Robert A. Heinlein · standalone novel · 1951

                  similar bysurvivalscience fictiontense+1 more

                  Parasitical aliens attach themselves to human hosts and take over their bodies. Two spies are sent to find out what's happening, but the extent is much farther than they knew. With access to the humans' memories, the aliens quietly invade the government and start taking over.

                • Cover of Outlander (Diana Gabaldon)
                  Outlander (Diana Gabaldon)

                  series · 26 books · 1991

                  similar by+2 more

                  Outlander is a series of historical fantasy novels by American author Diana Gabaldon. Gabaldon began the first volume of the series, Outlander, in the late 1980s; it was published in 1991. She has published nine out of a planned ten volumes. The ninth novel in the series, Go Tell the Bees That I Am Gone, was released on November 23, 2021.

                • Cover of Stephen King multiverse
                  Stephen King multiverse

                  universe · 46 books · 1967

                  Start hereThe Gunslinger · Start here

                  similar by+1 more

                  The man in black fled across the desert, and the gunslinger followed. So begins the long walk of Roland Deschain, last of an order of knight-errant pistoleers, across a land that has "moved on" — where the compass points drift, dead machines rot toward sentience, and the weave of what's real wears thin. His quest is the Dark Tower itself: a spire standing at the hub of every world that exists, the linchpin that holds all of them back from ruin. Roland's road runs eight volumes, from The Gunslinger through the closing Dark Tower, with the later, interleaved tale The Wind Through the Keyhole folding a story-within-a-story back into his youth. Along the way he draws a ka-tet — a fellowship bound by fate, not choosing — through doorways between worlds: a heroin-shackled New Yorker, a woman of two minds, a boy who dies twice. The Tower is also the secret axle around which the wider shelf of King's work turns; threads from The Stand, 'Salem's Lot and beyond wind quietly toward it. Expect a mongrel of Western, high fantasy, horror and decayed science fiction, told in a dusty, incantatory dialect all its own — ka, thankee-sai, the world that has moved on. This is King at his most mythic and most personal, a decades-spanning circle that rewards a patient reader. Begin at the beginning: The Gunslinger, then walk forward in publication order. There are other worlds than these — but this door opens first.

                • Cover of Time Storm
                  Time Storm

                  Gordon R. Dickson · standalone novel · 1977

                  similar bysurvivalscience fictiontime traveladventuroustense

                  A time storm has devastated the Earth, and only a small fraction of humankind remains. From the rubble, three survivors form an unlikely alliance: a young man, a young woman, and a leopard. "A masterful science fiction story told by a masterful science fiction writer". -- Milwaukee Journal. A time storm strikes the Earth. The Earth remains, but different parts of the Earth are in different eras. Travel between the different zones is thought to be impossible. The main character, Marc Despard, resolves to fight the time storm. After some struggles, he assembles a small band of people, including one alien, to help him try to understand what has happened and to stop the time storm. He has 2 extraordinary relationships with a older teenaged girl who is speechless for the first part of the book (she was "struck dumb" by the time storm) and with, believe it or not, a leopard. Dickson's writing makes the extraordinary seem quite normal. Ultimately, after being harried by a Mad Max-like group of survivors, he uses a machine found in a different era of time to bring his small band of followers into the future so that he can find those who are trying to fight the time storm. He convinces those future beings that he is capable of fighting the time storm, and ultimately stops it, and gets the girl in the end.

                • Cover of Hainish
                  Hainish

                  series · 33 books · 1964

                  completed

                  similar byscience fiction

                  The Hainish Cycle consists of a number of science fiction novels and stories by Ursula K. Le Guin. The cycle is set in a future history that features civilizations of human beings on planets orbiting a number of nearby stars, including Terra ("Earth"); these humans are contacting each other for the first time and establishing diplomatic relations, as well as setting up a confederacy under the guidance of the oldest of the human worlds, the peaceful planet Hain. In this history, human beings did not evolve on Earth, but they were instead the result of interstellar colonies planted by Hain in the distant past, after which interstellar travel ceased for an extended period. Some of the human races have new genetic traits, a result of ancient Hainish experiments in genetic engineering; this includes people who can dream while awake, and a world of hermaphroditic people who only enter active sexuality once per month, not knowing which sex will manifest in them. In keeping with Le Guin's narrative approach, she uses varied social and environmental settings to explore the anthropological and sociological outcomes of human evolution in those environments. The author often discounted the characterization of a so-called "Hainish Cycle".

                • Cover of A Fall of Moondust
                  A Fall of Moondust

                  Arthur C. Clarke · standalone novel · 1961

                  similar bysurvivalscience fictionadventuroustense

                  From the back cover of the Harbrace paperback: "The action of A Fall of Moondust takes place almost a century from now when tours on the moon are a common occurrence. One of the high points of each tour is a cruise around the Sea of Thirst, a body of volcanic dust, in a specially designed vessel called the Selene On a perfectly routine voyage one day the Selene suddenly disappears. How do you locate a small tourist "cruiser" buried beneath fifty feet of dust? If you find it, how do you rescue the passengers and crew? If you are on board, how do you feel and what do you do while brave men and expert technicians join forces in a race against time? Sustained excitement, lively humor, and an engaging cast of characters make this one of Arthur C. Clarke's most intriguing novels."

                • Cover of Farnham's Freehold
                  Farnham's Freehold

                  Robert A. Heinlein · standalone novel · 1964

                  similar bysurvivalscience fictiontime traveltense

                  Farnham's Freehold is a science fiction novel by American writer Robert A. Heinlein. A serialized version, edited by Frederik Pohl, appeared in Worlds of If magazine. The complete version was published in novel form by G. P. Putnam later in 1964.

                • HC
                  Heaven Chronicles / Zones of Thought

                  series · 8 books · 1976

                  similar byscience fiction+1 more

                • Cover of Uplift
                  Uplift

                  series · 5 books · 1980

                  part of Uplift Universe

                  similar byscience fictionadventurous+1 more

                  David Brin's Uplift trilogy opens with Sundiver, sending human explorers into the Sun itself, then follows a dolphin-crewed starship on the run from hostile aliens in Startide Rising and a fight over the colony world Garth in The Uplift War. The books sit inside Brin's wider Uplift Universe, built on the idea that spacefaring "patron" species genetically engineer younger "client" species into full sapience, with humanity an anomaly that reached the stars without a patron of its own.

                • Cover of Tripods
                  Tripods

                  series · 4 books · 1967

                  completed

                  similar byscience fictiontense+2 more

                  The Tripods is a series of young adult science fiction novels by John Christopher. The series takes place in a post-apocalyptic world where humanity is enslaved by "Tripods"—gigantic three-legged walking machines piloted by an alien race later identified as the "Masters". The first two books were the basis of a science fiction TV series, produced in the United Kingdom in the 1980s.