This third entry from the much-loved Nancy Drew and the Clue Crew series finds the clever detective and her friends investigating a Houdini of a pony. When a new petting zoo opens in town, Buttons becomes the star by escaping every night and showing up on someone else's lawn to eat the flowers. Nancy quickly jumps on the case-because even though she'd love to see Buttons on her lawn one morning, it's more important to keep him safe at the zoo.