Citizen of the Galaxy

Citizen of the Galaxy by Heinlein, Robert A.. mass_market edition. ISBN: 9780345260741.

SLAVE: Brought to Sargon in chains as a child -- unwanted by all save a one-legged beggar -- Thorby learned well the wiles of the street people and the mysterious ways of his crippled master . . . OUTLAW: Hunted by the police for some unknown treasonous acts committed by his beloved owner, Thorby risked his life to deliver a dead mans message and found himself both guest and prisoner aboard an alien spaceship . . . CITIZEN: Unaware of his role in an ongoing intrigue, Thorby became one of the freest of the free in the entire galaxy as the adopted son of a noble space captain . . . until he became a captive in an interstellar prison that offered everything but the hope of escape!