On a Beam of Light is the brilliant sequel to Gene Brewer's Ka-PEX, a novel in which a man calling himself a Prot claims to be a perfect being from the planet Ka-PEX, an idyllic world without war, government, or religion. . His psychiatrist at the Manhattan Institute is determined to prove that the proto personality is nothing more than a tragic manifestation of multiple personality disorder. But as people begin to notice Prot's unusual abilities, many of them begin to doubt the diagnosis. "On a Beam of Light" is the story of Prot's return to Earth and his plan to take a few people with him the next time he goes home. For Dr. Brewer, as for his patients who desperately court the prot in the hope that they might be chosen by him, it is a race against time, because, as the prot claims, this visit will be his last. Having something in common with One Flew Over the Cuckoo's Nest, it is a wonderful, funny and touching story.