Daring thieves steal the 200-year-old Jade Lily from a Minneapolis art museum and then offer to sell it back for one-third of its insured value--$1,300,000. But there's a catch. They demand that unlicensed P. I. Rushmore McKenzie act as go-between. McKenzie reluctantly agrees partly out of curiosity--why did the thieves pick him to deliver the ransom?--and partly because he feels he owes a favor to the insurance company that made him a millionaire...