Storm Breaker (The Blood Moon Trilogy #3)

Sam and Lance have been to Hell and back. Just when they think their lives can finally go back to normal, their biggest problem yet emerges. After learning of the East Coast Pack's existence, they've done their best to lay low, but Riley, brother to the leader of the pack, is urgent to find his girlfriend-recently changed vampire, Ruby. As Riley digs deeper into her disappearance, he comes closer to uncovering the truth about Luxury Island. Desperate to keep Ruby's hiding place a secret, Sam and Lance travel back to where it all began with the hope of saving her. What they find when they arrive makes all their unpleasant memories of the island seem like a daydream. There is a new source of evil on the island. One who is desperate for revenge against all werewolves, Sam and Lance included.