After being rescued in an unconscious condition by the light keeper of Martha’s Vineyard, Mary’s next concern is how to get off the island and back to New York. She knows now that Mr. Craig must have a powerful motive for trying to keep her out of the way. The next day brings the supply boat to the island and Mary, after much intercession with the captain, is allowed to get aboard and sail for the mainland. Meantime John Craig and his son, still aboard the schooner from which Mary had previously escaped, are consumed with impatience. Suddenly a cry of fire runs through the ship and great volumes of smoke pour through the hatchway. The boat is a furnace. They lower the small boats and John Craig suddenly finds himself in an open boat on the bosom of the Atlantic. Several hours afterward they reach Martha’s Vineyard greatly exhausted, only to discover that Mary had departed an hour before they arrived. Craig hires a launch and gives chase. Marv reaches the mainland first and is conducted to the railway station, where she boards a train for New York. Then Craig reaches the mainland, and, arriving at the station, learns that the train has just left. In desperation he hires an automobile and again a chase is on. At Easton Junction, where Marv has to change cars, Craig manages to catch up with her, but Mary being in a crowd, he dares not molest her He boards the same train and takes up a position several seats behind her. Now there flashes across Mary s mind a daring scheme. It is her only chance: she will try it. The train pulls into the station. She suddenly jumps up, leaves the car and Craig tries to follow, but there are several passengers who have risen in the meantime, also to leave the car. While he is trying to push his way out to the platform, Mary manages to run the length of the car, board the other platform and disappear into the train she has just left. Craig, of course, thinks she is leaving the station with the other passengers and only discovers his mistake when the train is pulling out and he realizes that he has been outwitted by a slip of a girl called Mary.