"The Grey Knights Omnibus"

A collection of three novels about (checks title) the Grey Knights, W40's super elite anti-demon hunters, and as close as the setting comes to good guys. Contained within are three novels:

Grey Knights - This is a good start; the book kicks off with a battle where an isolated group of Grey Knights mounts a almost hopeless assault on a evil, naughty demon who's sealed for a thousand years, with the story picking up as some naughty, evil Chaos chumps attempt to summon him back into real space. The 13th Black Crusade is going on in the backround (as it is for the entire omnibus, actually), meaning that our heroes are working on as close to a shoestring budget as 8 foot tall psychic genetically modified guys in powered armor can be. Since our heroes work as the Inquisition  anti-demon branch and inquisitors need to be super suspicious, there's also a health dose of paranoia, although I'm not sure I exactly followed one character's redemption late in the book. Solid, slightly above average stuff.

Dark Adeptus - This is my favorite novel in the omnibus. It kicks off with an entire planet screaming out of the Warp, and our heroes go to investigate, saddled with suspicious allies who they don't entirely trust, and vice versa. This aspect really makes the book stand out, with our heroes fighting not just against the entire possessed world, but keeping an eye on their companions, who they suspect are there to steal some ancient, highly valuable technology. It does take a little while to get going, but once the characters make it into the more interesting parts of the planet (basically a corrupted super-server), this is the best material in the whole collection.

Hammer of Daemons - Unfortunately the omnibus goes out with a real slog; Our hero is captured in the first ten pages and spends the rest of the book trying to escape a demon planet dedicated to Khorne, the least interesting Chaos god, whose gimmick is that he's real angry and loves blood. While it's interesting seeing our hero taken out of his Grey Knight comfort zone, a lot of the book is portent-filled dreams and symbolic demon possession attempts, and this gets old real quick. I appreciate the author trying something new after the previous two novels, but it didn't quite work in this case.

All in all, this falls squarely into the large pile of good, not great, W40k fiction out there; two good and one okay novels for the price of a single paperback is hard to pass up.