MW’s Codes and Ciphers Series: The Keyword Polybius Square in The Ultimate Quest Armchair Treasure Hunt
The Ultimate Quest, published in 2001, was an armchair treasure hunt book. It has since been discontinued and remains an unsolved treasure hunt of today. The Prize was to be ‘a priceless replica of the Grail cup’. In order to have claimed the ‘Grail’, searchers needed to discover the contact …