Count Desmond Cross comes to the Doyles for help, as he has been unable to feed for some time and is dramatically weakened. Carysle Ravencastle and Creighton Lavoisier appear and try to put the Doyles under thrall to get them to not help the Count. Unfortunately, they don't have enough power to put both Doyles under thrall at once. Ravencastle reveals that he has come back from his second death when Creighton rubbed his blood in Ravencastle's ashes (to see what would happen). Doing this put Creighton under Ravencastle's thrall, and made Ravencastle a double vampire. Ravencastle took revenge on Count by stopping him from putting others under thrall, thus weakening him. Ravencaslte tries to erase their memories and drink their blood, but he still only has enough power to keep three of them in thrall at once. Ravencastle switches the thrall around, and when the Count is free he drains Ravencastle's blood, and then Creighton's. He attempts to drink the Doyles' blood as well, but Sadie stabs him through the heart with a stake.
—Thrilling Adventure Hour Wiki