This is a wonderful novel. It concerns a geneticist, his family, his neighbours and his patients - in particular, one patient. Henry Moss is an expert in "Hickman Syndrome", a fictitious disease but very closely based on the real disease of progeria, in which children age at an accelerated rate and die of old age in their early teens. His favourite patient, William Durbin, aged 14, is close to the end. Moss thinks he may have found a cure, and much of the book concerns his progress to this end.
But there is much more to the novel than a simple will-it-work/won't it thriller. Like all really good novels, it raises questions about the nature of life, of being alive, of our relationships with others. It's written in a transparent, "non-literary" style with hardly a false note throughout its 400-odd pages - I was reminded of William Maxwell at times. Very highly recommended.