The adventure continues in this sixth book in the New York Times bestselling multiplatform series. An insightful look at what it means to be a hero, with the glory it brings and the sacrifice it demands. Deep in the desert there sits a beautiful oasis, ruled by a monarch unlike any other in Erdas. His name is Cabaro, the Great Lion, and he reigns over a kingdom of animals, jealously guarding his golden talisman. No human has ever set foot in the Great Beast???s territory. The journey to his oasis is impossible. As a team, Conor, Abeke, Meilin, and Rollan have achieved the impossible before. But now that team is broken???the friends scattered by a devastating betrayal. The young heroes and their spirit animals have already sacrificed much in their quest for the talismans. But with the world crumbling all around them???and a ruthless enemy opposing their every move???their greatest sacrifices are yet to come.