There are days when Aiden wants nothing more than to leave Tristan to suffer in the messes he's made. They've been through a lot, he, Tristan, and Callie, and he loves them, but Tristan still drives him to thoughts of murder.

Until Tristan goes off on a research trip, and a few days later the magic in Aiden's tattoo stops glowing—meaning that in all likelihood Tristan is dead. Clinging to the hope he's wrong, Aiden and Callie go looking for him, and wind up in a town where a series of suicides aren't exactly what they seem, and only the beginning of their troubles...