December 1703 finds Berry Grigsby fallen victim to Professor Fell's involuntary drug experiments. Her mind is quickly deteriorating under the drug's influence, and the only way to save her is a potion book that was stolen in an attack on the village orchestrated by a mysterious madman going by the name Cardinal Black. Matthew Corbett has volunteered to travel with Julian Devane, a self-proclaimed "fool and bad man" in the employ...