Desc: Mystery of the Double Cross: Directed by William Parke, Louis J. Gasnier. With Mollie King, Léon Bary, Ralph Stuart, Gladden James. As the S. S. Huron returns from her summer trip to Europe laden with many passengers, a mysterious lady in room 7 is never seen, and the whole boat starts to gossip about her. In the meantime, a puzzling telegram arrives for Peter Hale, the passenger in the room across hers, about a sign of the Double Cross and his father's will.