From the publisher:
A new mystery has rolled onto Penfurzy island and the Rebel Bicycle Club are ready to investigate! Nessa, Demelza and Captain Honkers set-off to explore a travelling fun-fair when things begin to get strange.
With new friends and a new legend to uncover, the best friends do what they do best: SAVE THE DAY FROM A FATE WORSE THAN HOMEWORK. A mysterious adventure with twists, turns and gross-out caravan invaders guaranteed to make you laugh!