In their second book of adventures, Boobela discovers all about Worm's family after a busy day at the beach; Worm invents a clever bet to get Boobela to eat proper food (instead of crisps and pizza); Boobela tries to prove how brave she is by camping out in the Haunted Wood; and the friends encounter the belching giant - a volcano which holds a precious secret deep within. Along the way, we hear more from Boobela's mum and dad, learn how to make a compost heap (Worm-style), find out what sports worms like to play ... and learn a little more about the best kind of magic there is: the magic that's inside the heart and mind.