Myne's disappearance has left Fate reeling, but as the new head of the Barbatos family, he must be strong. At first he's focused on reforging a bond with his former tormenter and new sister, Memil. Then a grim encounter critically endangers Roxy's soul, and Fate must find a way to protect her before his Gluttony devours her once and for all. But as he searches, unexpected answers to old mysteries begin to emerge--and the truths Fate uncovers about his own heritage prove as dangerous and strange as they are difficult to swallow.