More like Underworld

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Tunnel in the SkyNovel
Robert A. Heinleinstandalone novel1955
About space exploration.
“As the final test of a survivalist/explorer class, teenagers are dumped on an alien planet to use their skills while awaiting pickup.”
from the catalogue
Starman JonesNovel
Robert A. Heinleinstandalone novel1953
About space exploration, set in spaceship.
“Starman Jones, a 1953 science fiction novel by Robert A. Heinlein, features a farm boy who wants to go to the stars.”
from the catalogue
Imperial GalaxySeries
series2 books2012
About identity and political intrigue.
“Garth Nix's A Confusion of Princes follows Khemri through the empire's ruthless military, its secret intelligence service, and a deadly, decades-long competition to determine who might one day take the throne.”
from the catalogue
Start with A Confusion of Princes →
Citizen of the GalaxyNovel
Robert A. Heinleinstandalone novel1957
About identity and slavery.
“On a planet far distant from Earth, a lame beggar buys a young boy slave who has forgotten his origins.”
from the catalogue
Space WinnersNovel
Gordon R. Dicksonstandalone novel1965
About aliens and space exploration.
“Suddenly Jim Rawlins, Ellen Bouvier, Curt Harrington, and the squirrel-like Alien philosopher Peep were castaways, stranded on the Quarantined World of Quebahr - with no training, and little hope of rescue.”
from the catalogue
Have Space Suit - Will TravelNovel
Robert A. Heinleinstandalone novel1958
About aliens and space exploration, set in near future and the moon.
“One minute Kip Russell was walking about in his own backyard, testing out an old space suit and dreaming about going to the moon - and the next he was out cold and the captive of an insidious space pirate.”
from the catalogue