What happens when your new pen pal turns out to be a demon? Cressida didn't really believe Bastien when he told her he wasn't human, but when her father's death brings dangerous debt collectors to her door, the only place she can run to is her new pen pal, and she instantly discovers he and his friends are exactly what they claimed to be. Bastien, the shadow demon. Set, the beast man Anubis. Hinata, the Oni demon. Her friends are dangerous, lethal, and they awaken feelings in Cressida she thought long dead. When demons leave their mark on her, they won't stop until she belongs to them. Can Cressida finally let go of everything that she's been through in her life and move towards a new future with them in Hell, or will her past destroy their future forever? This completed collection features both novels in the Monster's Bride duet.