The town of Lop, says Marco Polo, is situated near the commencement of the great desert called the Desert of Lop. It is asserted as a well-known fact, that this desert is the abode of many evil spirits, which entice travellers to destruction with extraordinary delusions. If, during the daytime, any persons remain behind on the road until the caravan has passed a hill and is no longer in sight, they unexpectedly hear themselves called by their names, in a tone of voice to which they are accustomed. Supposing the call to proceed from their companions, they are led away by it from the direct road, and, not knowing in what direction to advance, are left to perish. In the night-time they are persuaded they hear the march of a great cavalcade, and concluding the noise to be the tramp of their own party, they make the best of their way in the direction of the quarter whence it seems to come; but when the day breaks, they find they have been misled and drawn into a situation of danger. Sometimes, during the day, these spirits assume the appearance of their travelling-companions, who address them by name, and endeavor to draw them out of the proper road. It is said, also, that some travellers, in their way across the desert, have seen what appeared to them to be a body of armed men advancing toward them, and, fearful of being attacked and plundered, have taken to flight. Thus, losing the right path, and ignorant of the direction they should take to regain it, they have miserably perished of hunger.
Marvellous, indeed, and almost passing belief, are the stories related of these spirits of the desert, which are said to fill the air at times with the sounds of all kinds of musical instruments, of drama, and the clash of arms. When the journey across this dreadful waste is completed, the trembling traveller arrives at the city of the Great Khan.[1]
In this rich chapter of horrors how finished an allegory for old John Bunyan! With what religious unction he would have led his Christian traveller from that unknown city on the edge of the sands, across the Soul's Desert of Lop, with its
"Voices calling in the dead of night, And airy tongues that syllable men's names,"
Leigh Hunt declares that he has read, in some other account, of a dreadful, unendurable face that used to stare at people as they went by.