One of the first Fallen on Earth, ancient vampire Calista has been God's scalpel, a Horseman of the Apocalypse. Having lived countless lives, Calista is known as Emily Devereaux today, but in London, late 1800s, she was known as another … The last victim of Jack the Ripper. Her weakness that night left her broken, a shell of the powerful creature she was. Vampire and head of the FBI’s top BAU team, Sabastian Holmes is hunting a ritual killer. Sabastian thinks Jack is back to continue the c...