It is 3000 years after the events that take place in Ender's Game and Ender Wiggin is alive and well, as is his sister Valentine. Having spent the majority of their adulthood travelling through space, relativity allows them both to be only in their 30s age-wise and yet they have both witnessed the progression of mankind for over 3000 years due to Ansible communications technology which allows for instantaneous communication across the vast distances of space. The Starways Congress has been created in the wake of the xenocide of the buggers and a new form of religion has been formed based on the writings of Ender Wiggin. Speakers for the Dead are now called upon to speak the truth for the recently deceased. Speakers are expected to neither condemn nor forgive the actions of the deceased, but rather shine the light of truth upon them so others can draw their own conclusions. Speakers are given ultimate access to the records of deceased individuals and anyone may request a Speaking. Once a Speaker is called upon and accepts the task the Speaking can't be stopped and the Speakers themselves have rights and powers protected by the laws of the Starways Congress to fulfill their duty. Since space travel still takes significant time it is not uncommon for a Speaker to arrive at a Speaking destination many years after receiving the initial request via an instantaneous Ansible transmission.

Twice before the human race has faced extinction at the hands of the Buggers, an alien race that ruthlessly attacks without communicating in any way, and many feel the 3rd war is imminent. It is within this context that we learn about the battle school set up by the International Fleet (IF) to train earth's most promising children to become commanders of the human fleet. Only a prodigy trained from birth in the art of war will be able to resist our deadly enemy and with the 3rd war almost upon us, humanity is running out of time. The powers that be will cut any corner and take any risk they deem necessary to get ready, because if they fail there will be no humans left to condemn their actions as immoral.