Ultra-snobby Clara Frankofile has everything an eleven-year-old girl could want. She's fabulously wealthy, she lives alone in a penthouse apartment with its own roller coaster, and all of New York City is afraid of her! Each night at the Pish Posh restaurant, she watches the glittery movie actresses and princesses, and decides who is important enough to stay and who she will kick to the sidewalk in disgrace. But Clara's world is turned upside down when she discovers that a peculiar mystery is happening in the restaurant, right under her upturned nose.With the help of a whip-smart twelveyear- old jewel thief, Clara embarks on a wildly dangerous mission through the streets of New York to solve a 200-hundred-year-old secret.