Alfredo is hardly the run-of-the-mill protagonist of much Latin American fiction. From Ecuador’s mining region of Pinas, at 17 he is short for his age, having Larón Syndrome, a rare blood condition which slows physical growth. For 10 years, Alfredo has travelled the world with a doctor who affirms that Larón holders can cure cancers. 　　In Ecuador, Alfredo is a media star. But he ...