Love and Betrayal (Eternal Dungeon #1.2)
Dusk Peterson

As a torturer learns the art of questioning prisoners, he discovers that the word "love" can have a darker meaning than he had supposed.
Idolizing a mentor who teaches him to place first the best interests of his prisoners, young Elsdon Taylor gradually realizes that the High Seeker of the Eternal Dungeon is hiding a secret. Now Elsdon must confront the man whose work determines the future of the dungeon's prisoners.
In doing so, Elsdon must also confront a demon from his past.
This suspenseful novella (short novel) can be read on its own or as the second story in the "Rebirth" volume of The Eternal Dungeon, an award-winning speculative fiction series set in a nineteenth-century prison where the psychologists wield whips. Friendship, family, gay love, and rebellion are intertwining plotlines in the series.