What could purple cows and elderly spies possibly have to do with each other? When young Mikey Cross discovers ceramic purple cows, a ring, and investigative notes left by a mystery writer popular in the 1950s, his parents' and grandparents' lives are turned upside down. Pamela and Chris Cross become involved in vintage intrigue with trepidation and more than a little angst when they find out there's an elderly assassin on the prowl and the situation...