Dr. Drake Gorden was a passenger on a freighter bound for the South Seas, but his ship was hit by a typhoon. He gets swept to an uncharted island on which is home to a Tibetan monk who lives at the top of a huge mountain. This monk gives Dr. Gorden a black diamond and explained its history. The diamond had been discovered thousands of years ago by an Egyptian man who used it for good, but it was stolen from him and used for evil until it disappeared. It was later found by the monk, who kept it until he found someone that would use the powers of the diamond as a force of good.