Everyone in the Underland has been taking great pains to keep The Prophecy of Time from Gregor. Gregor knows it must say something awful but he never imagined just how awful: It calls for the warrior's death. Now, with an army of rats approaching, and his mom and sister still in Regalia, Gregor the warrior must gather up his courage to help defend Regalia and get his family home safely. The entire existence of the Underland is in Gregor's hands, and time is running out. There is a code to be cracked, a mysterious new princess, Gregor's burgeoning dark side, and a war to end all wars. In this action-packed and suspenseful final installment in the acclaimed Underland Chronicles, Suzanne Collins unfolds the fate of the Underland and the great warrior, Gregor the Overlander, in a manner that can only be described as masterful.