In his second adventure, eleven-year-old Gregor returns to the world beneath New York City to rescue his kidnapped sister, Boots, and fulfill a prophecy that will restore peace to the people, bats, rats, cockroaches, and spiders who populate the underworld.

Twelve-year-old Gregor returns to the world beneath New York City, where he joins forces with Princess Lexa and Ripred the rat to defend the Underlanders and the Nibblers from the army led by the adolescent rat king, the Bane.

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.

Gregor descubre que su hermana Boots ha sido raptada y conducida otra vez a las Tierras Bajas. Gregor debe rescatarla y proteger a la sociedad de Regalia de la amenaza de las ratas gigantes. In his second adventure, eleven-year-old Gregor returns to the world beneath New York City to rescue his kidnapped sister, Boots, and to fulfill a prophecy that will restore peace to the people, bats, rats, cockroaches, and spiders who populate the underworld....