For the Boxcar Children, New York City is bursting with things to see and places to go. But before the end of their first day there someone steals the priceless Elizabeth Star diamond from their friend Mr. Pound. The track clues through New York City's Central Park, down busy streets, and into glittering jewelry stores only to find they have too many suspects It's the Big Apple's big mystery, and the Boxcar Children are going to solve it.The paperback edition of the special includes a fun-filled activity section with puzzles, crafts, and recipes.