Alex and his friends are kidnapped by the dragon-riding Sky Pirates and taken to the island of Dragon's Tooth. Alex, a young boy who was once considered an Unwanted and destined for the Death Gate, now finds himself in a world of dragons and danger. He must learn to survive and potentially master dragon riding to escape his captors and find his way back home, all while navigating the treacherous politics and rivalries of the Sky Pirates.

This book is the first in a new series spun off from 'The Unwanteds,' focusing on a younger protagonist and a more action-oriented adventure. The premise suggests a fast-paced narrative filled with dragon-riding action and the challenges of survival in a new, dangerous environment. Readers familiar with the original series can expect a similar blend of fantasy elements with a focus on friendship and overcoming adversity. The narrative is likely to explore themes of self-discovery and finding one's place in a world that initially rejected the protagonist.