Search for clues hidden in the pictures and help Hound to solve the riddle in this delightful return to the world of Puffin the Architect. I'm Hound! And I'm a sleuth. I solve all types of cases. I sniff and snuff until my nose detects the clues and traces. Missing jewels, stolen cars - I always solve the crime. My latest case arrived by post. Ha ha - detecting time! This gorgeous, multi-layered and engaging whodunnit by an award-winning writer has a delightful surprise at the end. Readers will love studying each action-packed illustration, poring over the details of Hound's secret passages and map, spotting the adorable animals lurking in the pictures, and finding the caterpillar hidden on every page.