A weathered map with odd symbols and a huge dog lead Geo and his friend Paul on a search through the Hamptons-- but for what? Three hundred years ago Captain Kidd sailed near here. Could these be clues to Captain Kidd's final treasure that countless people have looked for? Seems unlikely, but the map is clearly a riddle pointing at something. They have to find out without getting others too interested in the search and having them discover the treasure first, but it may be too late. A mysterious lady shows up along their path in Southampton as they continue to put together clues. Is she on the same trail? Who is she? And how does a 19th century painting by William Merritt Chase help them? With each step, they find clues pointing in one direction-toward Windmolen, the windmill on Peconic Bay.