When Reuel Briggs, a medical student at Harvard, witnesses the performance of the beautiful singer Dianthe Lusk at a concert, he's infatuated by her talent and beauty. That next morning, Reuel is called to treat the victims of a train accident. Among them is Dianthe, seemingly dead, but he revives her using a form of mesmerism.

Reuel falls in love with her and proposes marriage. Wanting to provide for his fiancee, he undertakes a dangerous but lucrative archaeological expedition to Ethiopia, where he discovers more than treasure. Now his special abilities begin to make sense as he learns the truth about his ancestors.