The Beast4 books in series
The Beast Publisher's Summary
If there’s no such thing as werewolves, then why are all my friends dead?
A werewolf is preying upon the denizens of a small town. The only people who know what it is, who understand what is happening, are children. A group of third-graders isn't exactly the most credible source of information, especially when it comes to the fantastical. They grow up being ridiculed, shunned, bullied, and mistreated by their peers and the broader community.
Years later, it returns, but this time, Thomas and his friends are prepared for it. As the body count rises and the tension mounts throughout the town, only The Freaks (as they call themselves), have come to terms with what it is. After all, they have seen it before. They have seen the blood it spilled firsthand.
Nobody is above suspicion. Not even family members. Thomas and his friends cannot trust anyone and must suspect everyone. As children, they learned the truth. As grown werewolf hunters, they must use every bit of courage they have to face the monster. Nothing short of killing it will suffice.