When eleven-year-old Gregor and his two-year-old sister are pulled into a strange underground world, they trigger an epic battle involving men, bats, rats, cockroaches, and spiders while on a quest foretold by ancient prophecy.

Eleven-year-old Gregor and his younger sister, Boots, return to the Underworld beneath New York City to find the cure for a terrible plague that threatens the life of their mother, as well as the lives of the people, bats, and rats who populate the underworld.

The stunning conclusion to the riveting Gregor the Overlander series by bestselling author Suzanne Collins. Everyone in the Underland has been taking great pains to keep The Prophecy of Time from Gregor. Gregor knows it must say something awful but he never imagined just how awful: It calls for the warrior's death. Now, with an army of rats approaching, and his mom and sister still in Regalia, Gregor the warrior must gather up his courage to help...

Read all five books in the New York Times bestselling Gregor: The Underland Chronicles!

When Gregor follows his little sister through a grate in the laundry room of their New York apartment building, he hurtles into the dark Underland beneath the city. There, humans live uneasily beside giant spiders, bats, cockroaches, and rats—but the fragile peace is about to fall apart.Gregor wants no part in this conflict, but again and again,

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