It is Halloween and Hettie, Mona and Cressie have been selected by Miss Nightingale to sing to the Grand Wizard. It turns out, the Grand Wizard is ill, so his place is taken by wizard author Richard Avalon. Hettie gets into trouble while trying to prove a point and is replaced by Belladonna to sing in the ceremony. Hettie decides she must prove who Richard Avalon really is...