Uncle Oscar owned a small San Francisco antique shop called the Green Vase. His area of expertise: Gold Rush history. With his many contacts in the construction business, Oscar had amassed an extensive collection of artifacts. Dead of an apparent stroke, Oscar left his shop to his niece. As she began to sift through the contents, she couldn't shake the feeling that Uncle Oscar's death may well have been a result of foul play -- and directly linked to a Gold Rush legend he'd been investigating. In the company of her two cats, she follows a twisted trail of dangerous deception that leads all the way back to those rough-and-tumble days of the Gold Rush itself.