More from Suzanne Collins: The Underland Chronicles
In Book 4 of the bestselling Underland Chronicles, Gregor is drawn ever deeper into a brewing crisis. It's only a few months since Gregor and Boots returned from the Underland, leaving their mother behind to heal from the plague.
With two prophecies fulfilled, Gregor is now focused on the Prophecy of Blood, which calls for Gregor and Boots to return to the Underland to help ward off a plague. But this time, his mother refuses to let him go...unless she is allowed to travel with them.
Gregor swears he will never return to the Underland, that strange world below New York City. But he is a key player in another prophecy, this one about an ominous white rat called the Bane. The Underlanders know there is only one way to lure Gregor back to their world: by kidnapping his little sister, Boots.