Giant Gog and his string dog have mysteriously disappeared... Who could be wreaking havoc on magical Reindeer Island? Will Wizard Oldpopper, Lucy and Joe find the clues at the ice caves that can save the Island and their giant friend from the ghastly creature? It will take one almighty wizzle-pop to save the day. But will it be enough? Another whacky and enchanting adventure in the much loved Hocus Pocus series.