Missing Bones

A young boy lives next door to a graveyard, which is not easy if you really believe in ghosts. Then a builder comes to turn over that graveyard, ready to stick some smart, new houses on it. Imagine if instead of finding a few old coffins though, he actually finds nothing, nothing at all. All those gravestones must belong to someone, but who and where are they? In the local park perhaps, or maybe even closer to home...?