Cosmic Trouble! Did Grundy Thicket really see a UFO, or was it a flying sheep? Who is the blue blob on Ringo's Hostility Detector? Is Mr Grimble an alien from the planet Quorkidellian? Will Skipjack's brain be sucked out through his ears? Can Oli save the world from the evil Zolborg Naphax? Before these questions are answered -there'll be trouble! This is the sixth book in the hilarious "Tales of Trouble" series.