Key

John Smith and Cloe Taylor are at an auction house selling relics from their previous adventures. Psychic Cloe gets vibrations from a small chest, telling her to buy it. She wins the bid. Gloria Rowbottom is televising all this for NBC. She, too, is getting vibes and goes back to their house.
Inside the chest, they find a gold mine claim from Nome, Alaska, of a hundred years old. On the back, it says 'Finders keepers' signed Don Wicker. They investigate and find that Don was brutally murdered the day after writing the message. A key and pebble are also in the box.
They decide to investigate with dramatic results.