Reborn picks up a couple of decades after The Keep. Glaeken has finally been allowed to age normally when suddenly Rasalom re-enters the picture as the unborn baby of an innocent woman and her husband, the world's first clone. The Ally wants to destroy him and the Adversary has agents on-hand to protect him at all cost.
Wilson has fun here spinning out his Secret History of the World, and warping the religions of the world--particularly Catholicism--around it. Aside from that, it's pretty generic horror fare.
I Am Legend seems to be mostly concerned with the human response to isolation, and I found Matheson's take to be a little disturbing. Neville is understandably dealing with crushing grief, fear, and loneliness, but his response to the female vampires was...excessively rapey. It was off-putting and hard to relate to; this might say something about the time in which the author lived (IAL was published almost sixty years ago), or maybe Matheson just has issues, I don't know. Anyway, Neville eventually finds a measure of peace in the search for knowledge, teaching himself science in an attempt to understand the how and why of his world's transformation.
The story ends abruptly: Neville is discovered and killed by a community of "civilized" vampires, who fear him and his hunting skills. It felt to me like a missed opportunity to explore xenophobia and the human instinct to destroy rather than communicate.
Volume 2 ends with a fascinating 7 page history of the actual war that's being portrayed in the book. There's also an Afterword by this volume's illustrator, Pat Masioni, a native of the Democratic Republic of Congo (he did a terrific job, by the way).
It's not fun, but it's an excellent book. The politics are convincing, the dialogue rings true, his new-found skills seem genuine. The narrative is disjointed, wandering, which echoes the hero's dissociation and confusion. Some of the scenes are brutal, but not gratuitously so. This first volume ends with some truly tantalizing hints of things to come. I'm looking forward to reading the next installment.