Concerning the real nature of the devices by which the ships are propelled at sea and the carriages on land, I must still unroll a blank mind until I can secretly, and without undue hazard, examine them more closely. If, as you maintain, it is the work of captive demons hidden away among their most inside parts, it must be admitted that these usually intractable beings are admirably trained and controlled, and I am wide-headed enough to think that in this respect we might--not-withstanding our nine thousand years of civilised refinement--learn something of the methods of these barbarians. The secret, however, is jealously guarded, and they deny the existence of any supernatural forces; but their protests may be ignored, for there is undoubtedly a powerful demon used in a similar way by some of the boldest of them, although its employment is unlawful. A certain kind of chariot is used for the occupation of this demon, and those who wish to invoke it conceal their faces within masks of terrifying design, and cover their hands and bodies with specially prepared garments, without which it would be fatal to encounter these very powerful spirits. While yet among the habitations of men, and in crowded places, they are constrained to use less powerful demons, which are lawful, but when they reach the unfrequented paths they throw aside all restraint, and, calling to their aid the forbidden spirit (which they do by secret movements of the hands), they are carried forward by its agency at a speed unattainable by merely human means. By day the demon looks forth from three white eyes, which at night have a penetrating brilliance equal to the fiercest glances of the Sacred Dragon in anger. If any person incautiously stands in its way it utters a warning cry of intolerable rage, and should the presumptuous one neglect to escape to the roadside and there prostrate himself reverentially before it, it seizes him by the body part and contemptuously hurls him bruised and unrecognisable into the boundless space of the around. Frequently the demon causes the chariot to rise into the air, and it is credibly asserted by discriminating witnesses (although this person only sets down as incapable of denial that which he has actually beheld) that some have maintained an unceasing flight through the middle air for a distance of many li. Occasionally the captive demon escapes from the bondage of those who have invoked it, through some incautious gesture or heretical remark on their part, and then it never fails to use them grievously, casting them to the ground wounded, consuming the chariot with fire, and passing away in the midst of an exceedingly debased odour, by which it is always accompanied after the manner of our own earth spirits.