Prowlers : laws of nature

When nineteen-year-old Jack Dwyer's best friend Artie is murdered, he is devastated. But his world is truly turned upside down when Artie emerges from the Ghostlands to bring him a warning. With his dead friend's guidance and the help of the one person who doesn't think he's insane, Jack learns of the existence of the Prowlers. Under bold new leader Owen Tanzer, the Prowlers, already eight packs strong, have united. They move from city to city, preying on humans until they are close to being exposed, then they move on. And unlike werewolves of legend, they aren't human beings whom the moon transforms into wolves...they are savage beasts masquerading as humans. Jack wants revenge. But even as he hunts the Prowlers, he marks himself—and all of his loved ones—as prey. Nineteen-year-old Jack Dwyer is devastated when his best friend, Artie, is murdered, but his world is truly turned upside down when Artie's ghost appears to warn him about the deadly Prowlers--a gang of werewolves who prey on humans from city to city Jack Dwyer's best friend Artie is murdered by werewolves and he is out to get revenge for his death