Oak Island & the Treasure Map in Shakespeare

In this book that is now available in two differnet paper versions as well (color or b/w), Petter Amundsen, featured on the TV show The Curse of Oak Island, argues that Shakespeare, the author of Hamlet, Macbeth and The Tempest etc, took part in the Rosicrucian movement, and that his books give clues to the whereabouts of the fabled Rosicrucian vault.