The Revenge of the Wizard's Ghost

Collapsed in a weird trance, Johnny Dixon is dying. Professor Childermass and Fergie soon learn the horrifying reason: Johnny is possessed by the spirit of the evil Warren Windrow. In a desperate effort to find a clue that will save Johnny's life, the professor and Fergie race to the gloomy Windrow estate. But demonic forces are waiting for them, and suddenly they're fighting for their own lives.