作者简介：
罗伯特·A·海因莱因是世界科幻协会评出的第一位“科幻大师”，同时也是最具有影响力的美国科幻作家之一。有批评家指出，“许多当代作家企图与这种影响力较量，最后发现他们对抗的仿佛是大海或天空，毫无取胜之望。”
海因莱因一生创作了数十部科幻长篇，曾经四次获得雨果奖长篇小说大奖，这一获奖纪录一直保持至今。
《严厉的月亮》是海因莱因最后一部获奖长篇，与《异乡异客》、《时间足够你爱》并称为海因莱因最优秀的三大杰作。

作品简介：
月球的地下城市中住满了从地球流放来的罪犯。犯人们及其他们的后代经过艰苦努力，使月球变成了一个粮食基地，但却受尽地球盘剥。为了保证月球有限的资源不会枯竭，月球人开始了反抗。
海因莱因在这部作品中，不仅成功地塑造了曼尼等多个令人信服的反英雄形象，更以自己在技术方面超人的预见性刻画了一台获得了自我意识的超级电脑——月球人对抗地球的秘密武器。
本书最突出地展示了海因莱因所有优秀作品的共同特点——发人深省的思想、扣人心弦的情节、对科技发展的预见，是海因莱因最受欢迎的杰作之一。

Winner of the Hugo and Nebula Awards
In order to develop a secure defense against a hostile alien race's next attack, government agencies breed child geniuses and train them as soldiers. A brilliant young boy, Andrew "Ender" Wiggin lives with his kind but distant parents, his sadistic brother Peter, and the person he loves more than anyone else, his sister Valentine. Peter and Valentine were candidates for the soldier-training program but didn't make the cut--young Ender is the Wiggin drafted to the orbiting Battle School for rigorous military training.
Ender's skills make him a leader in school and respected in the Battle Room, where children play at mock battles in zero gravity. Yet growing up in an artificial community of young soldiers Ender suffers greatly from isolation, rivalry from his peers, pressure from the adult teachers, and an unsettling fear of the alien invaders. His psychological battles include loneliness, fear that he is becoming like the cruel brother he remembers, and fanning the flames of devotion to his beloved sister.
Is Ender the general Earth needs? But Ender is not the only result of the genetic experiments. The war with the Buggers has been raging for a hundred years, and the quest for the perfect general has been underway for almost as long. Ender's two older siblings are every bit as unusual as he is, but in very different ways. Between the three of them lie the abilities to remake a world. If, that is, the world survives. "Ender's Game" is the winner of the 1985 Nebula Award for Best Novel and the 1986 Hugo Award for Best Novel.

An alien is left behind on Earth and saved by the 10-year-old Elliot who decides to keep him hidden in his home. While a task force hunts for the extra-terrestrial, Elliot, his brother, and his little sister Gertie form an emotional bond with their new friend, and try to help him find his way home.