Lilly Cross has a secret. The kind that's to die for.

Never mind that she'd walked away from her arcane gifts years ago. Never mind that she'd built herself a perfectly normal life—a daughter, and a family that needed her. Never mind that she was damned near happy.

Because when an old ally washes up from the shadows, frantically spouting tales as outlandish as they are disturbing—shapeshifting mosnters walking among us, bent on human blood and strong as they are cunning—there's no going back.

Never mind that life was good, he tells her.

Because if no one stops these things, it's all about to come crashing to a violent end anyway...