Velma and the Spirit of the Silver Miners
The Scooby-Doo gang were on their way back to their base near Denver, where they lived in Fred's grandfather's old house which had been willed to him. They stopped to refuel the Mystery Machine at a gas station and ate in the attached cafe. On the wall was an advert inviting people to visit a local silver mine. The advert said that it was unique in that it had been worked by women during WW2. So after eating, they drove up there. Near the entrance to the workings, was a group of old...