This, the sequel to Eon, is much better than its predecessor. Jeopardy is introduced early and the book appears to be about some things; going home and getting old. Unfortunately I still found it hard to relate to most of the characters and their varied fates.
There is, I discovered, a third book - I feel that I'd like to read it more to see where the SF ideas go than from a desire to follow the characters further. I'm in no pressing hurry, though.