Before becoming one of today's most intriguing and innovative mystery writers, Kate Wilhelm was a leading writer of science fiction, acclaimed for classics like The Infinity Box and The Clewiston Test. Now one of her most famous novels returns to print, the spellbinding story of an isolated post-holocaust community determined to preserve itself, through a perilous experiment in cloning. Sweeping, dramatic, rich with humanity, and rigorous in its science, Where Later the Sweet Birds Sang is widely regarded as a high point of both humanistic and "hard" SF, and won SF's Hugo Award and Locus Award on its first publication. It is as compelling today as it was then.

地球环境渐渐恶化，最后演化成为前所未有的灾难。政府垮台，经济崩溃，最可怕的是，人类逐步丧失了繁殖能力。 种族的灭亡迫在眉睫。一小群具有远见卓识的人制订了克隆计划，这是延续种族的最后希望。 他们成功了。 但是，克隆产品却不完全符合预期。他们具备前人没有的许多天赋，从种种迹象上看，他们似乎是远超于前人的“新人类”。 他们自己也这么想。 但是，新人类的未来却潜伏着可怕的危机……