Bonnie knows how to build sandcastles best, but her friends insist on building their own castles every way but Bonnie's way. They sift and sculpt and burrow in the soft, white sand, happily playing by their own rules. No-one listens to Bonnie. Soon, her anger boils over and she storms off across the dunes.

Bonnie's friends are patient and understanding; they will wait for her to navigate her feelings. But can Bonnie show herself the same kindness?

In Castle Crashing, award-winning duo Andrea Rowe and Hannah Sommerville return to the sun-kissed world of Jetty Jumping and Sunday Skating with a new story celebrating friendship and self-discovery.