When eleven-year-old Cailin's mother takes a contract job on Victoria's eastern coast, Cailin's holiday plans are ruined. Worse, they're staying at her eccentric grandfather's shack at Whitefoam Cove. Cailin barely remembers him, let alone knows him. Grandpa doesn't have Wi-Fi, and his television is older than him. The memories of her father are everywhere and, to make matters worse, she's left her cricket bat at home. How will she make the team now? And how will she keep in touch with her best friend, Josie? It's going to be the worst summer ever. But life with Grandpa proves to be anything but boring. There's treasure to be found at Whitefoam Cove, and Cailin's collection of sea glass is growing rapidly. But just when cricket-mad Cailin and her estranged grandfather finally feel like they're making a connection, disaster strikes... and Cailin knows it's all her fault. Will Grandpa ever forgive her?