Frogspell

Max Pendragon is probably the worst squire in King Arthur's kingdom — he'd much rather be a wizard instead. So when he accidentally invents a spell that turns people into frogs, it seems his wish might come true. But events take an unexpected turn when Max enters a Spell-Making competition and finds himself helping Merlin fight an evil sorceress. Could Max's unpredictable frogspell finally be put to good use?