The Ghost's Grave - Kehret, Peg

What Josh thought would be the dullest summer of his life, spent with his eccentric great-aunt, turns chilling when he meets the ghost of a miner killed in a mine explosion and then finds a box of cash buried in the miner's grave.

The Ghost's Grave 2007, Puffin Books, New York, NY

ISBN-13: 9780142408193

Trade paperback

The Ghost's Grave 2005, Dutton Children's Books, New York, NY

ISBN-13: 9780525461623