The Vault of Horror #4

When Howard Martin made an offer to buy the castle from its owner, Mr. Weatherby, then dismantle it and reassemble it back in the states, the owner wouldn't sell and Martin left. But Weatherby's nephew Nathan saw a chance to get some money, so he murdered his uncle, carried him out to the family mausoleum and buried him, then notified the authorities that his uncle had stepped into a quicksand bog on the property and died. Martin was then allowed to buy the property, but then strange things began to happen and the castle soon became a tourist attraction.