Follow Gregor in the fourth enthralling adventure in Suzanne Collins\' New York Times bestselling Underland Chronicles -- with gorgeous new cover art coming July 1st In Book 4 of the bestselling Underland Chronicles, Gregor is drawn ever deeper into a brewing crisis.
Gregor and Boots jo.
But now the mice are disappearing and the young queen Luxa is determined to find out why.
For generations, rats have run the mice out of whatever lands they\'ve claimed, keeping them constantly on the move.
Follow Gregor in the fourth enthralling adventure in Suzanne Collins\' New York Times bestselling Underland Chronicles -- with gorgeous new cover art coming July 1st In Book 4 of the bestselling Underland Chronicles, Gregor is drawn ever deeper into a brewing crisis
