It’s mostly a psychological sf novel about morality of humankind with touch of fundamental science. A new super human race appears. The book depicts their philosophical and moral frictions with the existing humans, Homo Sapiens.
The story is really captivating and very absorbing though you can’t find here nuclear wars, missiles with antimatter warheads and all that. There’s also a place for humor too. Especially I liked the twin sisters. Through the books One of them always says ho ho, the other he he. And in those parts it seems to me it's one of the horrors of Steven King. ))