Blackout

A comment, rather than a significant review. I question using the sub-genre tag "Historical Fantasy", because the novel (and the entire series of novels and stories) is entirely science fiction, with time travel. There is no fantasy element whatsoever. The same comments would apply to All Clear, Fire Watch and To Say Nothing of the Dog.

I do recognize the problem that NONE of the SF sub-genres has any historical aspect, and I wish we did have one (but none of us want 2001 sub-genres to choose between either - apologies to Arthur C. Clarke!).