Gregor and the Code of Claw (Underland Chronicles, Book 5)

Everyone in the Underland has been taking great pains to keep the new prophecy, The Prophecy of Time, from Gregor. Gregor knew from the beginning that it must say something awful, but he never imagined just how awful: The prophecy calls for the warrior's death. The warrior, of course, being Gregor. Now, with an army of rats approaching, and Gregor's mom and his sister still in Regalia, Gregor must gather up his courage in the face of this terrifying prophecy to defend Regalia and get his family safely home. 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 to contend with, 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.