This was a fascinating, generational story of life on Lusitania, where humans have come into contact with the second sentient beings--the piggies--since the xenocide of the buggers in Ender's Game. Feeling guilty, the Starways Congress decides to allow xenologers to study these aliens and live among the Catholic colony on Lusitania. When two xenologers die at the hands of the piggies, the old calls for war ring again but instead of an armada, the Speaker of the Dead is summoned. Andrew Wiggin, Speaker of the Dead, sets off for Lusitania where he hopes to repair the lives of two of families on Lusitania and solve the mystery of the piggies.
This story is VERY different from Ender's Game, and yet it succeeds in many ways. The very idea of a Speaker for the Dead is incredibly moving and to have Ender, the slayer of the buggers, fill this role proves even more powerful. The dramatic effect he has on Lusitania is enough to declare the book a triumph. However, the culture of the piggies is at the heart of the story, and the gripping mystery of the xenologer's deaths, when resolved, will not disappoint. Card really doesn't need to continue this series; I can't image a more fitting ending.