After an apocalypse, societies have split into multiple factions. Major ones include the closely gated technological society, a fundamentalist Christian society, and a loose affiliation of psychically inclined tribes. As their birth rate declines, the tribes attempt to unite and re-establish contact with the close gated society, but the Christians stand in their way.
This was an interesting reading experience for me; about a third of the way through the book, I remembered I had actually read the sequel, Wintermind, ages and ages ago. That took out some of the surprise of the story, but created an interesting degree of anticipation, where I wondered how the story would reach the point I knew. Metaphorically, it's kind of making the case that our spiritual sides and technological sides need to be reconciled, or the former will be destroyed by a failure to tamper natural forces, and the latter pushed into stasis without an independent will. But in order for the two to be able to meet, the religious fundamentalist must be reckoned with and expelled.
It kind of works on the level of plot, that the maneuvering of groups are really interesting. Despite the fact that the focal group is definitely the tribes they're the set of the three I feel like I had the least grasp on; perhaps because they're assumed knowledge, or perhaps because or first glimpse of them is from Singer, a child born of a city woman and tribal man who's on the outside of both groups. I can't say it works on the character level; the two I felt the most connection to was the tribal leader's other son and his love interest, but the rest I felt pretty cold on. Given his prominence at the start, I was surprised when Singer fell out of the plot. I should have guessed what was happening there, though, since the sequel performs a very similar trick. All in all, not a great read, but an interesting one. And I could see checking out something else from either author.