Kate Harker is a girl who hunts monsters. And she's good at it. August Flynn is a monster who can never be human. 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- Kate must face a monster she thought she'd killed, a boy she thought she knew and a demon all her own …