A missing cockapoo. A hidden key. And a treasure map lost for a century.Twelve-year-old Kassy O'Roarke runs a pet detective agency out of the storage closet behind her best friend's mom's bakery. It's not glamorous-but when cats and dogs start vanishing near the Lemon Tree Petting Zoo, business is booming.While searching for a missing pet, Kassy, her pesky little brother, and Freddie the ferret stumble upon a hidden key... and a treasure map tied to real Tennessee history. Suddenly, the case gets a lot bigger.With a mysterious new kid next door, the dog-catcher on the prowl, and clues leading all over town, Kassy must race to solve the riddles, rescue the missing animals, and uncover the truth behind the lost treasure-before everything slips through her fingers.A fast-paced mystery packed with animals, puzzles, humor, and heart, this irresistible adventure is perfect for readers ages 7-12 who love clever clues, brave kids, and stories where curiosity always wins.