Shay has grown up fighting demons and kicking ass. Christina has had a normal life where the hardest thing she's had to do is fend off guys. Neither would have guessed that one day their worlds would collide in the most intimate of ways. In a long awaited battle between Heaven and Hell there will be only one winner. Trusts will be broken, loyalties tested, lives lost, secrets revealed. And only one side can win. The question is...who?