A fit conclusion to the series started with Nexus and Crux. 
 This third and final novel in the trilogy runs a little less hot, but doesn't suffer by it at all. The great thing about this series is that there is thought behind them, real philosophical questions on the nature of humanity, the mind, and the ever-present problem of xenophobia. So many of the great Golden Age Sci-Fi Masters asked us to consider the definition of humanity, and yet, we still struggle to answer this fundamental question. 
 Add this series to your Must-Read lists. 
 Previous reviews for series: http://www.dsafire.net/?p=1542