By surviving, Ivy is drawn into the conflict between the Martis and the Valefar. The war between these two immortal forces has raged for millennia without distraction. Until now. Ivy is an anomaly-she is the only person who has ever walked away from a demon kiss alive. Her survival gives her unique and deadly abilities. Too powerful to ignore, Ivy is a threat to both armies. These two ancient enemies will stop at nothing to kill the seventeen-year-old. Surviving is nothing new for headstrong Ivy, but her survival has never depended on another person before. This time it does. And if she misplaces her trust, she's dead. To her horror, she starts falling in love at the worst possible time-with the enemy. He appears to be protecting her. But she can't be certain if he is trying to help her, or help himself to her power. For Ivy, trusting the right person is the difference between love and survival, or a deadly demon kiss.

    Everything changes the summer before her junior year of high school when her eyesight inexplicably corrects itself, and she begins to rapidly lose weight. However, her new look comes with an unexpectedly expensive price. Madison’s first kiss with the boy she has had a crush on for years triggers powers she can’t control, almost killing him.She discovers she is a Berserker, a powerful being chosen to guard the world from the Havocs, ancient creatures brought into our world by magic thousands of years ago. They cause destruction and death, but cannot be killed. Only the Berserkers’ life-blood can bind – and free – the Havocs. One Havoc is free and wants Madison’s blood to free another. Instead of enjoying her new look and popularity at school, Madison must now work with the Berserkers to master her powers and bind the Havoc before it kills her. Oh, and if that weren’t bad enough, it turns out she is the first female Berserker since, well - ever.