And there is a marvellous, but profitable, custom in that country, that if there happen any contrary thing that should be prejudicial or grievous to the emperor, in any kind, anon the emperor has tidings thereof and full knowledge in a day, though it be three or four days from him, or more. For his envoys take their dromedaries, or their horses, and they ride as fast as they may towards one of the inns; and when they come there they blow a horn, and anon they of the inn know that there are tidings to warn the emperor of some rebellion against him; and they make other men ready, in all haste that they may, to carry letters, and ride as fast as they may, till they come to the other inns with their letters; and then they make fresh men ready, to ride forth with the letters towards the emperor, while the last bringer rests himself, and baits his dromedary or horse; and so from inn to inn, till it comes to the emperor. And thus anon he has quick tidings of any thing by his couriers, that run so hastily through all the country. And, also, when the emperor sends his couriers in haste throughout his land, each of them has a large thong full of small bells; and when they approach the inns of other couriers, they ring their bells; and anon the other couriers make them ready, and run their way to another inn; and thus one runs to another, full speedily and swiftly, till the emperor's intent be served in all haste. And these couriers are called _chydydo_, after their language, that is to say, a messenger.