Dilly's back in these four fun stories, and he's being just as naughty as ever. Dilly works out a money-making scheme that strangely coincides with an epidemic of bad behaviour among the other young dinosaurs...And then there's the day when Dilly suddenly starts to show some Used behaviour, much to his sister's annoyance. At the crucial moment in the Cup Final, can Father really be asking for Dilly to do his ultra-special 150-mile-per-hour super-scream? Finally, the super-scream persuades Mother and Father to let Dilly have his promised sleepover party. What have they let themselves in for?