Issued with an access code for the TombQuest online game.

Michael Northrop is the New York Times bestselling author of the middle-grade adventure series TombQuest. He is also the author of On Thin Ice; Trapped, an Indie Next List selection; Plunked, a New York Public Library 100 Titles for Reading and Sharing selection and an NPR Backseat Book Club pick; and other titles. An editor at Sports Illustrated Kids for many years, he now writes full-time from his home in New York City. Learn more at michaelnorthrop.net.