The sudden arrival of a new music teacher throws St Barty's School into confusion. Mysterious smells start coming from the staffroom and creepy-crawlies appear out of nowhere. The new arrival is, of course, Wilhelmina Worlock, a wicked witch with some nasty tricks. It's up to Mr Majeika to try to outwit her.

Binding: Paperback;96 pages; Publisher: Penguin Random House Children's UK; Classification: Children?s / Teenage fiction and true stories; Weight: 136 g; Dimensions: 195 x 129 x 7

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