So they had sailed over to the Crimea, where they had a counting-house at Soldaia, and taking with them a store of costly jewels, for they were jewel merchants, they had set off on horseback to visit the Khan of the West Tartars.

So much the Venetians knew, for word had come back from Soldaia of their venture; but they had never returned.

And so Marco, kicking his heels upon the quay, caught sailor-men by the sleeve and asked them about those wild horsemen with their mares' milk and their magicians and their droves of cattle; and as he asked he wondered about his father and his uncle, and whether they were dead and lost for ever in the wilds of Tartary.

But even while he asked and wondered and kicked his heels on the quay, while the Doge Tiepolo was watching the procession of the gilds and the clerk Canale was adding up customs dues or writing the ancient history of the Venetians, at that very moment the two Polos were slowly and wearily making their way across the heights of central Asia with a caravan of mules and camels, drawing near to golden Samarcand with its teeming bazaars, coming nearer and nearer to the West; and in the following year, 1269, they reached Acre, and took ship there for Venice, and so at last came home.
They had a strange story to tell, stranger and better than anything the lean, inquisitive boy had heard upon the quays.
They had soon disposed of their jewels and they had spent a year at the camp of the Khan of the Golden Horde of Kipchak on the mighty River Volga.

Then war broke out between that ruler and the Khan who ruled the Persian Khanate, and it cut off their way back.