Cotton Malone on the trail of Charlemagne. After decades, former federal agent Cotton Malone gains access to the files of his deceased father. While Malone knew that he died in a submarine, he had no idea about the mysterious circumstances that led to his death beneath the eternal ice of Antarctica. From the South Pole to Aachen, Malone embarks on a quest for the truth. But what role do the secret writings he finds in the tomb of Charlemagne play? And who are his pursuers, who seem to stop at nothing?.