Every October, you leave bodies behind like Halloween decorations. The asylums never held you for long, and remorse never found you. But when someone interrupts your latest hunt, you’re ready to silence them—until you spot him instead. Edmund Sylvan. The infamous Casanova Killer. Your favorite psychopath. And apparently, you’re his favorite too.

Every Halloween, monsters walk among humans unnoticed beneath masks and costumes. You’ve never believed the rumors—until heartbreak sends you fleeing down the festival’s forbidden haunted trail. Deep in the woods, surrounded by creatures who aren’t pretending, you crash into Kenneth Moonshire, the feared King of Wolves... and the moment he catches your scent, he knows. You’re his mate.

Every October, a strange carnival appears outside town overnight. Nobody knows who owns it or where it goes when Halloween ends. You only came for fun—until you win an impossible game. The prize isn’t money or a stuffed animal. It’s one wish from Salem Vex, the dangerously beautiful Carnival Master... who goes completely still when he sees the mark on your wrist.