Gregor and the Marks of Secret (The Underland Chronicles #4) Spiral-Bound | June 25, 2013

It's only a few months since Gregor and Boots returned from the Underland, leaving their mother behind to heal from the plague. Though Gregor's family receives frequent updates on her condition, they all know Gregor must return to fulfill his role as the warrior who is key to the Underlanders' survival. Accompanied by his now-talkative little sister Boots, still considered the honorary "princess," Gregor joins forces with another princess--12-year-old Luxa--and Ripred the rat to defend the Underlanders and the vulnerable "Nibblers," or mice, from the rat army.

Follow Gregor in fourth gripping adventure in Suzanne Collins's masterful New York Times bestselling Underland Chronicles!Now, in the fourth book in Suzanne Collins's New York Times bestselling series, Gregor is drawn into a crisis. For generations, rats have run the mice--or "nibblers"--out of whatever lands they've claimed, keeping them on the move. But now the mice are disappearing, and the young queen Luxa is determined to find out why.When Gregor joins her on a fact-finding mission, the true fate of the mice is revealed. It is something far more sinister than Gregor or Luxa had imagined--and it points the way to the final prophecy he has yet to fulfill. Will Gregor's role as warrior be put to the test?