Three brothers are supposed to go to a mangrove swamp to take pictures of horseshoe crabs for a school project, but they really just want to have some fun. They end up having more than just fun – they have the adventure of a lifetime. In this humorous tale full of twists and turns, Alfie, Pacey and Luke discover many mysterious secrets of the swamp: up-close encounters with wildlife big and small, a spooky house and an underground staircase, plastic birds in a future world – and a strange little man with an ingenious plan…

Contains extra interactive content, including a word-puzzle and a scavenger quiz!