Alcatraz, once the world’s most secure prison, is located on a small island in San Francisco Bay. Throughout its operation, many attempted to escape. In June 1962, three prisoners managed to break out, but they were never heard from again. What happened to them? Discover this unsolved mystery with real clues, facts, and pictures in the pages of this book. The story will unfold with easy-to-read text and exciting visuals. You can decide for yourself what you think happened during this mysterious escape from Alcatraz!