In the latest adventure of the Underland series, Gregor returns to a world beneath New York City where dangerous creatures, ancient prophecies, and uneasy alliances threaten to upend everything he knows. As tensions rise and the fate of the Underland hangs in the balance, Gregor must face terrifying new challenges with courage, loyalty, and a little luck. Dark, suspenseful, and fast-paced, this installment continues Suzanne Collins’s thrilling fantasy saga.