The Foreigner series by C. J. Cherryh is one of the two science fiction series I consider 'keepers'. Intruder is the 13th book and, while there are other books in this series that start with 'I', this is the only one that starts with 'I' that I've actually reviewed. I lost most of my collection a few years ago and am trying to get them all back, but it's hard when there are currently 17 books and I only have six.
I cannot begin to tell you how much I love this saga. Bren, Banichi, and Jago are such wonderful characters -- as are all of the characters in these books. The world of the atevi is incredible.
My goal is to get all the books again and start from the very beginning... and review them all. I know I will love them all as much as I did the first time around.