The novel “More Than Human” by Theodore Sturgeon was published for the first time in 1953. It’s the result of the union of a novella previously written with two other parts written specifically to obtain the novel. It won the International Fantasy Award.
The idiot’s life has always been lonely, but when by chance he meets Evelyn Kew a mental contact between the two of them creates a human contact as neither of them had ever experienced. Unfortunately, the girl’s insane father attacks the idiot seriously injuring him and, when Evelyn tries to stop him, he mortally wounds her. The idiot gets rescued by the Prodds, a farming couple who takes care of him and somehow adopts him.
After some years, Mrs. Prodd gets pregnant and the idiot leaves the couple to return to live on his own. The meeting with Janie, a telekinetic child, and with the twins Bonnie and Beanie, capable of teleporting, starts a sort of symbiosis. The idiot returns to the Prodds and discovers that the son they had suffers from Down syndrome, yet he has superhuman mental abilities that make him become the mind of a gestalt.