Washington—the Potomac—Chesapeake Bay—against the background of a beautiful and gracious city, a sleepy river, a tranquil bay, Captain Hugh North, against the most terrific odds he has ever encountered, fights his greatest battle. Here, in this list of the men and women who crowd these exciting pages, are his allies and his enemies, all participants in the mighty game of life and death. Here are murderers—and friends. Can you tell which they are? Watch them carefully—they have mystery and romance and adventure in store for you.