Voyager From Xanadu

Toward the end of the 13th century, at about the time Marco Polo was being received by the great Khubilai Khan, a Nestorian Christian monk from China called Rabban Sauma was making the reverse journey from the Mongol capital to Jerusalem. This book traces Sauma's trans-Eurasian travels against the era of the Mongol Empire and the last Crusades.