More like The Snow Queen

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Citizen of the GalaxyNovel
Robert A. Heinleinstandalone novel1957
About slavery.
“On a planet far distant from Earth, a lame beggar buys a young boy slave who has forgotten his origins.”
from the catalogue
Imperial GalaxySeries
series2 books2012
“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 →
Old Man's WarSeries
series16 books2005
Military science fiction, about war.
“Sign a document at 65, saying you intend to join up 10 years later.”
from the catalogue
Start with Old Man's War →
Known SpaceUniverse
universe142 books1964
About aliens.
“Give a clever species a few centuries and a working fusion drive, and it will fill the sky with problems.”
from the catalogue
Start with Ringworld →
includes Ringworld, Fleet of Worlds, Man-Kzin Wars
CoDominiumUniverse
universe98 books1971
Military science fiction.
“The body of work runs along a few hard threads rather than one line.”
from the catalogue
Start with The Mote in God's Eye →
includes Moties, Falkenberg's Legion, Laurie Jo Hansen, War World
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