Even after breaking up with his childhood sweetheart, Noah never noticed that someone had been watching him from the dark for far longer than he realized. By the time he sensed something was wrong, it was already too late. The shadows closed in, the tide pulled him under, and there was no easy way back out. Evelyn had always been there, close enough to feel familiar, close enough to feel safe. He never questioned it. He never thought he needed to. Once, he had naïvely believed that calling her his sister would be enough to keep certain lines from being crossed.