For Aiden, Chloe, Ava and Josh, holidays at their grandparents cottage mean wild beaches, no curfew, Bella the dog, and most of all adventure!A treasure hunt at a stately home takes a suspicious turn when the cousins discover a jewel heist unfolding around them. But how can they take down a gang of clever thieves when all theyve got is their bikes and a very risky plan? By being braver, smarter, and sneakier than the villains theyre chasing. . .Fleur Hitchcock is famous for her excellent thrillers for beginners, and this illustrated series takes younger readers on fantastic, realistic adventures.