But her twelve-year-old grandson Steven is determined to heal the cracks that gape between his nan, his mother, his brother, and himself. Steven desperately wants to bring his family closure, and if that means personally finding his uncle's corpse, he'll do it.
Spending his spare time digging holes all over the moor in the hope of turning up a body is a long shot, but at least it gives his life purpose.
Then at school, when the lesson turns to letter writing, Steven has a flash of inspiration... Careful to hide his identity, he secretly pens a letter to Avery in jail asking for help in finding the body of "W.P."- William "Billy" Peters.
So begins a dangerous cat-and-mouse game. Just as Steven tries to use Avery to pinpoint the grave site, so Avery misdirects and teases his mysterious correspondent in order to relive his heinous crimes. And when Avery finally realizes that the letters he's receiving are from a twelve-year-old boy, suddenly his life has purpose too. Although his is far more dangerous...