In this 1967 novel, the author Piers Anthony imagines a future in which galactic felons are dispatched to the prison planet Chthon to slave in fetid underground gem mines, with no hope of return. The antihero Aton, comndemned for miscegenation with a minionette, acts as a catalyst for uncontrolled change, bringing chaos and destruction to this netherworld as he seeks to follow in the footsteps of the one man who, legend has it, somehow made his escape. Piers Anthony Dillingham Jacob (born August 6, 1934 in Oxford, England) is a writer in the science fiction and fantasy genres, publishing under the name Piers Anthony. ...
Chthon was the prison of the damned, and the man incarcerated here was damned, whether there was justice in it or no. Legally damned and legally dead: no one escaped from Chthon.
He had been told that Chthon consisted of a maze of lava tubes, and intellectually he knew that their formation had been completed many centuries before, but it was hard to be objective.
Chthon was pictured outside as the home of perpetual rampage and orgy, sadism and torture beyond belief.