Master of Uncertainty by Richard L Noble
Approx. 158,600 words.
Published on April 3, 2012.
Timid, sixteen-year-old Mark Acanth comes to Manhattan with a promise to be considered for priesthood under Pope Pius XIII. In search for records of his birth, Mark discovers a hidden passage and a mysterious book, hinting he may be more than anyone thinks. Soon, he is at the center of a massive global conspiracy while being hunted by an ancient secret society known as the Hierarchy.