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.

After his little sister is kidnapped and taken away to the Underground, Gregor s pledge to never return there is quickly broken in order to track down the rat, Bane, and find his sibling with the help of his old friend Ares and princess Luxa. Reprint.

It has been only a few months since Gregor and Boots returned from the Underland, leaving their mother behind to heal from the plague.

(Paperback)

In this action-packed finale of the acclaimed Underland Chronicles, Collins unfolds the fate of the Underland and the great warrior, Gregor the Overlander, after a war to end all wars.

(Hardback)

As the plague in The Underland spreads, Gregor begins to understand his role in the Prophecy of Blood, and must summon all of his power to stop the biological warfare.