Xenocide — Orson Scott Card

THE WAR FOR THE SURVIVAL OF THE PLANET LUSITANIA WILL BE FOUGHT IN THE HEART OF A CHILD NAMED GLORIOUSLY BRIGHT.

On Lusitania, Ender found a world where humans and pequininos and the Hive Queen could all live together; where three very different intelligent species could find common ground at last. Or so he thought.

But Lusitania also harbors the descolada, a virus which kills all humans it infects, but which the pequininos require in order to transform into adults. The Starways Congress so fears the effect of the descolada, should it escape from Lusitania, that they have ordered the destruction of the entire planet, and all who live there. The Fleet is on its way, and a second Xenocide seems inevitable.

Until the Fleet vanishes.

The task of discovering how the ships were made to disappear falls to Gloriously Bright, the most brilliant analytical mind in a world of people bred to superintelligence. There is little doubt that she can solve the puzzle; but will she choose life or death for the three races who live on Lusitania?