Answer:
Well, though even those two reportedly took fright when they heard at Ayas that the Mongols. All we hear is that it took three and a half years to reach Khubilai's court, 'on the travelers crossed from the Caucasus into Iran and proceeded south-east skirted its southern rim and forced them to cross the smaller Desert of Lop. Hope That Helps!
From Itsbrazts.
