Now you must know that this city held out against the Great Kaan for three years after the rest of Manzi had surrendered.  The Great Kaan’s troops made incessant attempts to take it, but they could not succeed because of the great and deep waters that were round about it, so that they could approach from one side only, which was the north.  And I tell you they never would have taken it, but for a circumstance that I am going to relate.

You must know that when the Great Kaan’s host had lain three years before the city without being able to take it, they were greatly chafed thereat.  Then Messer Nicolo Polo and Messer Maffeo and Messer Marco said:  “We could find you a way of forcing the city to surrender speedily;” whereupon those of the army replied, that they would be right glad to know how that should be.  All this talk took place in the presence of the Great Kaan.  For messengers had been despatched from the camp to tell him that there was no taking the city by blockade, for it continually received supplies of victual from those sides which they were unable to invest; and the Great Kaan had sent back word that take it they must, and find a way how.  Then spoke up the two brothers and Messer Marco the son, and said:  “Great Prince, we have with us among our followers men who are able to construct mangonels which shall cast such great stones that the garrison will never be able to stand them, but will surrender incontinently, as soon as the mangonels or trebuchets shall have shot into the town."[NOTE 1]

The Kaan bade them with all his heart have such mangonels made as speedily as possible.  Now Messer Nicolo and his brother and his son immediately caused timber to be brought, as much as they desired, and fit for the work in hand.  And they had two men among their followers, a German and a Nestorian Christian, who were masters of that business, and these they directed to construct two or three mangonels capable of casting stones of 300 lbs. weight.  Accordingly they made three fine mangonels, each of which cast stones of 300 lbs. weight and more.[NOTE 2] And when they were complete and ready for use, the Emperor and the others were greatly pleased to see them, and caused several stones to be shot in their presence; whereat they marvelled greatly and greatly praised the work.  And the Kaan ordered that the engines should be carried to his army which was at the leaguer of Saianfu.[NOTE 3]

And when the engines were got to the camp they were forthwith set up, to the great admiration of the Tartars.  And what shall I tell you?  When the engines were set up and put in gear, a stone was shot from each of them into the town.  These took effect among the buildings, crashing and smashing through everything with huge din and commotion.  And when the townspeople witnessed this new and strange visitation they were so astonished and dismayed that they wist not what to do or say.  They took counsel together, but no counsel could be suggested how to escape from these