Curse of the Wicked Scoundrel by Sadie Bosque

He is a ruthless villain... Hades, the notorious owner of a gaming hell and brothel, is like the dark prince himself: enigmatic, mysterious, and dangerous. Scarred and stone-hearted, haunted by loss, Hades will stop at nothing to wreak vengeance on the people who shattered his life. Even if it means kidnapping the thief-taker’s sister. She is his enemy's sister... Eloise Gunning is not a damsel in distress. Clever and unafraid, she devises a plan to escape. But the more time she spends in the den of the criminals, the more she is forced to question everything she knew about reality, especially about her mysterious captor. There can be no touches between them. A curse promises sure death to anyone he’s ever loved. Yet, as passion flares, Eloise is faced with a heart-wrenching decision: Does she dare sacrifice everything for the man who's captured not only her freedom but also her heart?