New York City girl Claudia, a month shy of her twelfth birthday, has resolved to run away from home with her younger brother, Jamie. She plans everything to perfection, including their destination: the grand, elegant, all-encompassing Metropolitan Museum of Art. However, no sooner have Claudia and Jamie settled into their new home, than they are caught up in the mystery of an angel statue bought by the museum for the bargain price of $225. Is it in fact an undiscovered work by Michelangelo, worth millions? Claudia's investigation leads her to the remarkable, secretive Mrs. Frankweiler, who...