From the Barbary Pirates the pair hurtle backwards to Mongolian China in 1287. Genghis Khan has tried and failed to conquer the world but there are those inspired by his ideas. One such is Batu, who recovers the travelers. Convinced they know how he can break the fortress that stands between him and his goal, he puts Tony on the rack. With Doug’s help Tony escapes. The travelers must seek the only shelter they can find – that fortress and its commander, Marco Polo. But the Mongol hordes remain. And Tony may just be falling in love with Princess Sarit, daughter of Kublai Khan!