“We’re the best detective team you can rent,” brags Jason Star, age fifteen. But that’s wishful thinking on his part—this cocky kid is usually stuck doing all the maintenance work on the run-down mansion of the eccentric private detective Mr. Bz. But he’s able to put off mowing the lawn and washing the windows when his mother—normally dead-set against Jason helping Mr. Bz out on detective stuff—needs to hire her own son to save a friend from a séance scam involving thousands of dollars. Jason and Mr. Bz crack the case together and laugh off the curse put on them by the phony fortune-teller, but the curse becomes all too real when they are attacked by a fiery flying witch and her army of slithering creatures. This is no ordinary case; this is a life-or-death caper that requires some outside help from the psychic detective Akin Head. He’s a man Mr. Bz hates to call for help, but he’s also the only man with enough special powers to possibly save Jason and Mr. Bz from certain death.