The Devil Colony

This is more science-fictional than most and that was fun.
I liked the alternate history.
I didn't understand the source of the neutrinos nor how the ancients developed nano-tech.
Also its difficult to watch Gray and the team work really hard to acquire an artifact of significant historical and plot importance. Then, after a not nearly sufficient and cursory examination,
decided to destroy the artifact. This put everybody at risk because a more detailed inspection
would have allowed the team to resolve the problem earlier.

There is a problem sometimes in these books. In the first Indiana Jones movie, Indy destroys artifacts, throws people under trucks, shoot people in the market.
But we know he is the good guy in spite of this because the bad guys are Nazis!
There is some of this in this book. It's not enough that the bad guy wants to do evil, he is kind of cartoonishly evil, like Nazis