After a treacherous journey, Charlie is finally safe behind the walls of The Mercy Research Hospital. Yet, even as she's relieved to be free of danger, things aren't all they seem inside this secure world. Revelations about the research conducted in The Dead Forest and the role she played flips her world on its head and makes her question everything she knows as truth. Once again, with much against her, Charlie must take action for Star, Thomas, and all those she's come to care about in order to prevent the plan to wipe out everything...and everyone...remaining in the forest. And even as Charlie allows herself to relax, she meets Dr. Drake, the medical researcher who insists she's creating a better world. Of course, once you've fought off Draghoul and all the stuff of nightmares, a doctor with unclear motives is just one more challenge to meet.