Time Castaways: The Mona Lisa Key

From Liesl Shurtliff, the New York Times bestselling author of Rump: The True Story of Rumpelstiltskin, comes a thrilling new middle grade trilogy about three city kids who get on the wrong subway train and wind up on a wild, magical mystery-adventure throughout time.Imaginative, daring, and packed with fun, Time Castaways is perfect for fans of Escape from Mr. Lemoncello''s Library and Percy Jack...