#15 Regenesis by C J Cherryh

This is the sequel to Cyteen. I read Cyteen almost 20 years ago and I don't think it hurt that I hadn't refreshed my memory. You do find out who killed Ari by the end of the book but I was left with a feeling that there is just so much more to be said and I hope that it will not take another 20 years to see more of Ari. But I do want to go back and read Cyteen again and read 40,000 in Gehenna for the first time since it does get mentioned in the series but doesn't need to be read to enjoy the book.