The dinosaur friends are puzzled to find that their waterfall is not working. They set off up the riverbed to investigate but Flapper's non-stop eating and Nutter's crashing add to their troubles. When a T-rex attacks them, he releases the boulder holding the water back and the friends float back home. They escape the T-rex by going over the waterfall.
- ISBN10 0433018003
- ISBN13 9780433018001
- Publish Date 1 September 2010
- Publish Status Out of Print
- Out of Print 15 March 2021
- Publish Country GB
- Imprint Pearson Education Limited
- Language English