A missing puppy threatens to derail the school's summer fair. Dotty, her best friend Beans, and her dog McClusky are tasked with looking after pet's corner at the upcoming fair, which includes a small sausage dog puppy named Chipolata. However, just days before the event, Chipolata vanishes, leaving Dotty and Beans to put their detective skills to the test to find the lost puppy before the fair begins.

This installment in the Dotty Detective series is likely to appeal to young readers who enjoy lighthearted mysteries with animal protagonists. The premise suggests a straightforward plot focused on problem-solving and teamwork, suitable for early chapter book readers. The narrative's focus on a missing pet and a school event provides a relatable and engaging scenario for children. The series' established characters, Dotty and Beans, are expected to guide readers through the investigation with enthusiasm.