Samantha Havardson is in hiding. All things considered, it could be worse. For the time being, she's safe from the immortal warrior hellbent on settling a thousand-year-old vendetta against her. However, an unknown assailant has been inside Samantha's head, turning her into a liability to the very people trying to protect her. Meanwhile, Adrestus enacts the final stages of his plan, positioning himself to subjugate all of civilization. Options are slim, time is running out, and Samantha must come to terms with the fact that some villains can only be taken down from the inside, even if it means running the risk of becoming a weapon to be used against those closest to her.