A friend of Martin's uncle is supposed to meet Martin upon his arrival to brief him on the mysterious discovery, however when he arrives in Prague he discovers she has been murdered. What begins as a short expedition to Prague to examine an enigmatic tunnel turns into a dangerous and thrilling mystery, where murder, deception, the deep dark secrets of Nazis and the demise of the Mayan civilization, have our hero reeling into the heart of an exhilarating adventure.