The Planet Savers by Marion Zimmer Bradley, Science Fiction, Adventure

The story revolves around Dr. Randall Forth's quest to find a cure for Trailmen's fever, leading him to hypnotize his colleague, Dr. Jay Allison. Through hypnosis, Jay's alter ego, Jason, emerges—an outgoing mountain climber contrasting sharply with Jay's clinical demeanor. Tasked with leading an expedition to gather medical volunteers, Jason grapples with his dual identity while developing feelings for Kyla, a guide. The narrative explores themes of identity, love, and the struggle between warmth and detachment against a backdrop of stunning mountain landscapes.