10-year-old Jase is spending the summer holidays at the Castle Rock Caravan Park with his auntie and grandma, who has dementia. Expecting to be totally bored, he meets three other curious, brave, funny kids and together they solve the mystery of a series of thefts happening across the site. The finger of blame has started pointing at the children - they must find the true culprit to clear their names and see justice done! A warm-hearted, laugh-out-loud, twisty mystery with an authentic, kind depiction of a relative with dementia at its heart.