I like Turtledove, but the method he employs in this series, changing from subplot to subplot every 2-3 pages is nauseating. Just trying to remember who's banging who (literally; sex is a central theme in all his books) is mind boggling. Just when I begin to remember the difference bewteen Captain Morrell and Sergeant Featherstone (and they keep changing rank as well) and the plot picks up in intensity, boom - it switches to some completely different subplot. It took me longer to read this book than the past 5 books I've read combined!