The Underland Chronicles Gregor 5 Book Boxed Set, by Suzanne Collins (2009)

The Underland Chronicles: Gregor Boxed Set #1-5
Book is New
Rich in suspense and brimming with adventure, the "New York Times"-bestselling Underland Chronicles unfold the fate of the Underland and the great warrior, Gregor. Includes Books 1 to 5.