My Uncle Foulpest: Dinosaur Disaster by Timothy Knapman (author)

Living with an ogre is never easy. But when Wally gets chicken-pox, soon there are two misfits in the house. Wally is desperate not to miss his friend’s birthday party, and Uncle Foulpest thinks he knows exactly how to make him better. But though his magic medicine gets rid of Wally’s spots, it has a surprise side-effect – making Wally grow a dinosaur’s tail! How will he get rid of it before the party starts? By going to the doctor, where much hilarity ensues. And yet more disaster unfolds when Wally goes on a school trip to a haunted house, where Uncle Foulpest tries to exact revenge on the school bully – by fair means or foul!