The plot in summary: a group of Russian spies during the Napolenic war recruit a group of mysterious strangers to help kill the French in missions behind enemy lines. The strangers turn out to be vampires, and not the nice sparkly kind, so the main character, Aleksey, decides to kill them all.
Unfortunately, I'm not really impressed. There's several problems with this book:
The first problem is the total and utter lack of suspense. Both the prologue, and the text on the cover tell you exactly what is going to happen, which makes it all rather tedious. Ok, there's one small surprise towards the end, but you should see it coming before the character in question does, and it doesn't really do anything to change the outcome of the situation in general.
(spoiler: Iuda is not a actually a vampire, just a very sick human psycho who pretends to be one. And incidentally the only interesting character in the book.)
spoiler over
The other is that Aleksey, the main character is an utter and total idiot. Imagine the following situation: you are watching a house with a vampire in it, whom you want to kill. You have the following info: there is one superhumanly strong vampire in the basement, but two coffins, so there will be another one soon, as day is approaching. From your granny you learned vampire myths (and as usual, all myths are true), and you strongly suspect that vampires are allergic to light.
What do you do? Wait for the second vampire to come home, the sun to rise, and both of them to be helplessly asleep? No, because that would be silly. you charge in just before dawn, get into a messy fight with first one vampire, then the other, get an innocent bystander killed, and finally through sheer luck, manage to kill both vampires.
The other problem I have with Aleksey is that his moral compass is totally off. He displays an extreme hatred towards the vampires. To be fair, the vampires are rather at the monstrous end of the spectrum, and like rather brutally butchering people and keeping bodies to snack on in their houses, which is admittedly rather disgusting. On the other hand, Aleksey is a professional soldier and spy, thus not far away from mass murderer. There's a huge war going on, and people are dying like flies anyway, especially with the dubious hygienic conditions. Also, he has a relationship with a whore that very strongly reminded me of that between Tyrion and Shae in A Song of Ice and Fire, and almost ended in the same way. He's also married, and has a young son, by the way. The thought that having a prostitute as a mistress might be kind of immoral never crosses his mind. Through his pathetic hatred of the vampires and one-man vendetta commando, he sets in motion events which are going to get all his friends and a lot of innocent people killed, as the vampires want revenge, understandably enough.
I don't really know how to explain it, somehow I just felt that his hatred was way out of proportion in contrast to what the vampires did within the general situation, and their contract, which turned him into a kind of mindless fanatic. His general idiocy doesn't help.
Or maybe I just like vampires too much, even if they're the kind who like to torture people. (These ones aren't very charismatic though, except perhaps Iuda)
Another thing that was alienating to the flow of the book was the incongruous use of neologisms and Russian expressions. It is implied that all characters speak Russian or French, which is translated for the reader's benefit, which is no problem in itself. However, though almost all words are translated, the random expression "verst" (a bit more than a kilometer) keeps popping up, while on the other hand, people say OK from time to time. It's just not a smooth experience of language.
The only way to save this book would be to take Aleksey's declaration that he'll force himself to believe that the version of reality that is preferably to him is actually real to its logical extreme and say that he is an unreliable narrator, and has been in some kind of psychotic mania ever since he was tortured by the Turks, and the things in the book only happened in his own mind, or that he actually did some of them.
All in all, I'd give this one a 5/10, and don't feel much like getting the sequel. From the prologue which is included in Twelve, there's just more of the same, just from an even more fanatic p-o-v.