TWO WORLDS. A SPY RING. CHARACTERS AND EVENTS FROM THE PAST COME TO LIFE. A FRIENDSHIP THAT DEFIES TIME.. Mary Grayson Pratt, a typical middle schooler, is bored with sightseeing with her parents in historic Boston. But the journey Mary takes into the past goes well beyond sightseeing. Mary is plunged into the center of the excitement and intrigue of the American Revolution. How did she get there? How will she find her way home? The meaning...