Dust of the Damned -- Peter Brandvold

This is a real rip-snorter of a weird western, set in an alternate America in which Abraham Lincoln had to resort to bringing in werewolves from Europe to win the Civil War. The werewolves were supposed to go home after the war, but you just can't trust a werewolf. They didn't go, and now the frontier is overrun with werewolves, swillers, and hobgobbies. Instead of the traditional bounty hunters, there are ghoul hunters, chief among them being Uriah Zane. When Charlie Hondo, the worst werewolf of them all, breaks out of Hellsgarde prison, assisted by a couple of other werewolves and a Mexican witch, it's up to Zane and beautiful U. S. Marshal Angel Coffin to track them down before they wreak real havoc.

This is one of those books where the action never lets up. Heads roll, supernatural creatures die by the dozens (humans do, too), and there's lots of sex. There's humor, too, and I got a kick out of noticing that an undertaker was named Hank DeRosso. If you're looking for a horror novel crossed with a spaghetti western, this is the one to try. Check it out.