C Roberts - Captive in the Dark

Caleb is a man with a singular interest in revenge. Kidnapped as a young boy and sold into slavery by a power-hungry mobster, he has thought of nothing but vengeance. For twelve years he has immersed himself in the world of pleasure slaves searching for the one man he holds ultimately responsible. Finally, the architect of his suffering has emerged with a new identity, but not a new nature. If Caleb is to get close enough to strike, he must become the very thing he abhors and kidnap a beautiful girl to train her to be all that he once was.
Eighteen-year-old Olivia Ruiz has just woken up in a strange place. Blindfolded and bound, there is only a calm male voice to welcome her. His name is Caleb, though he demands to be called Master. Olivia is young, beautiful, naïve and willful to a fault. She has a dark sensuality that cannot be hidden or denied, though she tries to accomplish both. Although she is frightened by the strong, sadistic, and arrogant man who holds her prisoner, what keeps Olivia awake in the dark is her unwelcome attraction to him.
WARNING: This book contains very disturbing situations, dubious consent, strong language, and graphic violence.