The boys must leave behind their sleepy town of Endsborough and risk their lives in the Wild Wood, crossing the perilous Oddmire swamp and journeying through the Deep Dark to reach the goblin horde and discover who they truly are. Then when they are twelve years old, a mysterious message arrives, calling the brothers to be heroes and protectors of magic. Tinn and Cole are raised as human twins, neither knowing what secrets may be buried deep inside one of them. Not knowing which to bring back, he leaves both babies behind. Too perfectly: Kull cannot tell them apart. By the time he turns back, the changeling has already perfectly mimicked the human child.

After laying the changeling in a human infant's crib, the goblin Kull is briefly distracted from his task. But when the fateful night arrives to trade a human baby for a goblin one, something goes terribly wrong. To renew it, goblins must perform an ancient ritual involving the rarest of their kind - a newborn changeling.

In this first book in a new fantasy-adventure series, the New York Times bestselling author of Jackaby takes readers on a journey of monsters, magic, and discovery. The boys must leave their sleepy town and risk their lives in the Wild Wood, journeying through the Deep Dark to reach the goblin horde and uncover who they truly are. When they are thirteen years old, a mysterious message arrives, calling the brothers to be heroes and protectors of magic. Too perfectly: Kull cannot tell them apart, so he leaves both babies behind. After laying the changeling in a human infant’s crib, the goblin Kull is briefly distracted. But when the night arrives to trade a human baby for a goblin one, something goes terribly wrong. To renew it, goblins must perform an ancient ritual involving the rarest of their kind-a newborn changeling. A captivating series opener.” - Booklist, starred review

“Set in a magical world filled with incredible creatures from folklore, this fast-paced fantasy will keep readers turning the pages. I can’t wait for the next one.” -Adam Gidwitz, author of the New York Times bestseller A Tale Dark and Grimm

Oddmire changelings