The world is breaking. And so are they.

Kate Harker isn't afraid of monsters. She hunts them. And she's good at it.

August Flynn once yearned to be human. He has a part to play. And he will play it, no matter the cost.

The war has begun. The monsters are winning.

Kate will have to return to Verity. August will have to let her back in. And a new monster is waiting—one that feeds on chaos and brings out its victims' inner demons.

Which will be harder to conquer: the monsters they face, or the monsters within?

Nearly six months after Kate and August were first thrown together, the war between the monsters and the humans is a terrifying reality. In Verity, August has become the leader he never wished to be, and in Prosperity, Kate has become the ruthless hunter she knew she could be. When a new monster emerges from the shadows—one who feeds on chaos and brings out its victim’s inner demons—it lures Kate home, where she finds more than she bargained for. She’ll face a monster she thought she killed, a boy she thought she knew, and a demon all her own.