My unwilling witch starts a girl band

Witty Rumblewick the cat is back, writing about even more hilarious hijinx with his unwilling witch in Book 3 of the series. Rumblewick is Haggy Aggy's right-hand cat, contractually bound to shape her into the best witch she can be. The problem? Haggy Aggy is a most unwitchy witch, and she has no interest in boiling frogs--she wants to be a STAR! Now Haggy is dead-set on entering the Girl Bands Are Us contest and becoming a rockstar. But how is Rumblewick to stop her and avoid the wrath of the ruling witches if he can't stop his head from bopping along with the music? With hand-written text of varying sizes, doodles, and comical black-and-white illustrations throughout, it's easy to believe you're really reading a diary.