Everything comes to a head in this seventh book in the New York Times bestselling series. The world of Erdas will be changed forever. Conor, Abeke, Meilin, and Rollan were once ordinary kids. Then they discovered that they had spirit animals—wise and powerful partners who granted them with amazing gifts...and a legendary responsibility. Together, the team has journeyed across Erdas, racing to stop a merciless foe. They have laughed and fought together. They've won challenges and lost friends. Some have even lost themselves. Now that journey is about to end. They must reach a place forgotten by time and face off against an ancient enemy breaking free from his prison. They have just one chance to stop him...or the whole world will shatter.