Cube

Picnicking families stumble upon a mysterious iron cube.

"Nobody knew what to make of the thing. It was too big to have been carted in on a pickup truck. It would be too large for the open bed of an eighteen-wheeler, and even then there were no tire marks in the area, no damaged vegetation and not even a road nearby wide enough for a load that size. It was if the block had been cast in its spot and destined to remain. And then there was the issue of the inscription."