When the young Henry Thorne is kidnapped and held prisoner in a remote farmhouse surrounded by miles of forest, he finds himself connecting with a strange force living in the woods—using that bond to wreak havoc against his captors. Unknown to the boy, however, is that this ancient being has its own reasons for wanting the interlopers gone—there is something hidden beneath the house, tucked away in the dark, damp root cellar . . . waiting for its return.