After the Great War, a horrifying spasm that was over in weeks, but killed half the human race, a couple of orphans carry on with their lives. Lola, a practicing therapist on Ganymede, and her younger brother cross paths with a small, dangerous group who will stop at nothing to keep the two from exploring the past and discovering their existence.
An interesting concept and well written.
Every bit as good as his Hugo winner.
Although I don't read as much sci-fi as I once did, I'm still a big sci-fi fan. These days I'm more particular in choosing which sch-fi novels I spend time reading. Since I really enjoyed this one, I've requested the third book in the series
I didn't read the first book in this series, but it appears each of the three novels in the series can be read alone.