The Sword of Armageddon (New Kid, Book 3)

Things have never been darker for 16-year-old Will Hunter. The girl he loves has been taken from him, he's been betrayed by his newfound half-sister, and he has only hours to find a cure to the poison coursing through his veins. He's in no shape to stop the Dark Lord from finding and using the Sword of Armageddon—but if he can't, he's not the only one who will die.

The third book in the New Kid series takes Will and friends from a demon-infested island in the Puget Sound to the top of the Seattle Space Needle, where Will's struggle against the Dark Lord ends in a confrontation that will determine the fate of all mankind.