When London begins to experience the same sickness that Paris experienced, Jack believes that the vampires have not been destroyed, but have moved on to another city. Jack wants to believe it was only a dream, that the vampires are gone, that they've been banished by an ancient ritual that sent their leader to the depths of hell. But he isn't so sure. That voice still echoes in his mind, the voice of a vampire god promising to return. Jack's friends Ben and Emily say it is just his imagination, and he desperately wants to believe them. While Victorian London may be safe, a strange sickness is raging in Paris. A familiar illness that leaves its victims drained of blood. It seems the vampires have moved on, and the fight must follow them.