Peter, a light fae, has spent his life hiding among humans — a light fae at a human academy, until a betrayal and a mystical warning send him on a quest to find out who is after him and why.

Across the realm, young fae men are imprisoned in a brutal mine — the Lost Shadow Boys — surviving on strategy, stubborn hope, and a prophecy that promises a girl will one day free them. She doesn't even know they exist.

Peter collides with a mysterious girl at a Paris fashion show and discovers she is his twin sister — and that together they possess a power that some will do anything to claim or destroy.