Ender's game

Once called a hero for practically single-handedly bringing an end to the Formics War, Ender Wiggins has lived a long life by travelling the stars as a Speaker for the Dead. When Ender is called to the planet Lusitania, where the human colonists are having trouble with the first sentient species encountered since the Formics, he must find a way to bridge the communication and cultural gaps between the two species to avert disaster.