Lusitania seems to be a planet on which three intelligent species--humans, the pequininos, and the Hive Queen--can finally live together, until a virus dangerous to humans but vital to the pequininos is found, and the Starways Congress orders Lusitania and its inhabitants to be destroyed.
General Note
"Volume three of the Ender quartet"--Cover.
Sequel to: Ender's game.
"A Tom Doherty Associates book.".