Crab is a big crab in a small rockpool and he RULES THE ROCKPOOL . . . or so he thinks.

When a big wave sweeps him and Prawn into an even larger pool, he has to reevaluate his place in the hierarchy. If Crab doesn't RULE THE ROCKPOOL, who does?

Acclaimed picture-book creator, Matty Long, brings his hallmark talents of deadpan comedy and hilarious illustrations to this fascinating picture book. Readers can feast on a diet of facts about the ecosystems of a rockpool and laugh out loud at the same time.