The Watson family moves to Stoneygate, an old coal-mining town, to care for Kit's recently widowed grandfather. When Kit meets John Askew, another boy whose family has both worked and died in the mines, Askew invites Kit to join him in a game called Death. As Kit's grandfather tells him stories of the mine's past and the history of the Watson family, Askew takes Kit into the mines, where the boys look for the childhood ghosts of their long-gone ancestors.