When Caroline learns that British spies may be lurking in Sackets Harbor, she is worried. Then, a long lost friend of Papaís shows up in town. Papa is delighted to give him a job at Abbottís Shipyard, but soon, strange things start going wrong. Caroline is sure a spy is making trouble at the yard--but is it one of Abbottís trusted workers, whom she has known all her life, or could it be Papaís dear friend? A "Looking Back" section discusses the role of spies in the War of 1812.