'Gog the Giant wants to be a fairy. It seems unlikely that he will ever pass the fairy test, however, so Wizzles - Lucy and Joe - set about training him for the big day. If he passes, Giant Gog will be able to fly to the tail end of Hocus Pocus to rescue his father from the evil clutches of Witch Jellypoo, who wants to melt Gog's father's golden bottom off and become rich.' (From the publisher's website.)