The mysterious book

In 1982, a book called ''The Secret: A Treasure Hunt'' written by Byron Preiss, was published. It contains 12 verses and 12 pictures. The mystery of this book is that the reader has to match the pictures with the verses and then solve the riddle of a certain verse and a matching picture. In case of successfully solving the given problem, the reader would be able to find one of the twelve treasures hidden across USA.

However, in three decades no one was able to find all the treasures. Only two of twelve riddles are currently solved and successfully located on the map of USA. Here is an example of one of the two matching verses and pictures:

Where M and B are set in stone
            And to Congress, R is known
            L sits and left
            Beyond his shoulder
            Is the fair folks'
            Treasure holder
            the end of ten by thirteen
            is your clue
            Fence and future
            Central too
            For finding jewel casque
            Seek the sounds
            Of rumble
            Brush and music
            Hush

 

Nonetheless, what I find to be the real mystery about this, is not where the treasure are located and  how these verses together with their pictures were created, but who placed those treasures especially if there are twelve of them and they are widely spread across the whole country rather than a single area. Moreover, if the writer himself knew about the latter treasures, why would not he himself find those or tell his friends or relatives about it rather than writing a book.

To access the book follow this link

http://thesecret.pbworks.com/w/file/fetch/69009390/The%20Secret_OCR.pdf