Three years ago, Evelyn Hart divorced the most infuriating man she'd ever loved. Lucian Vale was gorgeous, obscenely wealthy, devastatingly charming, and apparently incapable of explaining why he disappeared every Thursday night. She assumed he was cheating. He wasn't. He was collecting souls. Now Evelyn has accidentally inherited a supernatural debt worth thirteen million dollars, three ancient blood oaths, and one very irritated demon prince who insists she belongs to him. Lucian has exactly seven days to keep his ex-wife alive. There's just one problem. The contract protecting Evelyn requires them to be married. And Evelyn would rather go to Hell than marry Lucian Vale again. Unfortunately, Hell is beginning to look like a very real possibility.