Once more on passing through the streets of his capital the interior of the houses and the occupations and amusements of his subjects were revealed to him. In some houses he saw feasting and merriment, in some mourning and death. In the dwellings of the rich there was to be seen fine clothes and jewellery, in the hovels of the poor squalor and rags. And so constantly varied and animated were the scenes which by virtue of the ointment he was enabled to observe, that he walked on for more than an hour without experiencing either fatigue or weariness.

At length, as he was passing a certain mean-looking house in one of the less important thoroughfares, his attention was attracted to a scene which caused him to stop before the house; and, resting in the obscurity of a great recessed doorway on the opposite side of the way, to observe with much interest what took place in the room before him.

It was a large room, and but dimly lighted by a single oil lamp placed upon the table. A great number of packages were lying in a confused heap on one side of the room; and on a raised divan near to the table and facing the door of the apartment sat an old man of no very inviting appearance. About his head he wore an old turban, not very clean and put on in a careless and slovenly manner. His eyes were shielded and concealed by a large green shade, as though the light even of the one oil lamp were too strong for him. His clothes were plain, but much better than his head-gear; his form seemed slight and wiry, and Haroun noticed that his hands, which were small and plump, were adorned with several very handsome and valuable rings.

Between this large room occupied by the figure just described and the door in the wall of the house was a small ante-room or lobby, in which was seated on the bare floor a little ill-looking hump-backed slave, whom the Caliph, whose memory for faces was remarkable, immediately recognized as a mute who had been under the orders of Mesrúr, and who, in consequence, it was supposed, of some punishment inflicted upon him, had fled from the palace some months previously. The sight of this slave caused Haroun to be additionally curious to learn what might be the business of his present master. The occupation of the mute was obvious. He sat in the lobby at the door of the house ready to open it for any one who might wish to enter.

The Caliph had but few moments to wait before the figure of a man carrying a small bundle crept stealthily up the street and stood at the door. Pressing what looked like the head of a large bolt on the surface of the door, a piece of wood on the inside was slightly raised. On this sign the mute rose, and opening the door just sufficiently wide to allow the man to enter, he closed it quickly, and immediately led the way into the large room where the old man sat by the lamp. The new-comer placed his bundle on the table, and having opened and displayed its contents, which consisted of some jewellery and some pieces of fine cloth, he packed it up again and deposited it with the other packages upon the floor.

The old man, who had sat quite motionless, and whose lips did not once move, proceeded to count out certain coins on to the table; these the other took, also apparently in silence, and forthwith departed, leaving the house and passing down the street in the same stealthy and furtive manner in which he had arrived.

The Caliph and Giafer remained some time concealed thus in the black shadow of the doorway where they were standing; Giafer being half asleep, and supposing his master to be resting where they were simply because he was tired. The Caliph, however, was watching the proceedings of the old man and his slave. One after another half a dozen visitors arrived, were admitted on giving the same signal, showed the contents of their several bundles, deposited them on the same heap, were paid in silence by the old man, and thereupon went their way.

There was no departure from the uniformity of this procedure, excepting that when any one arrived and gave the signal while another was still occupied with the old man, the mute took no notice whatever of the signal, and in every case the man wishing to enter seemed at once to understand why his signal remained unanswered, and waited patiently until the door was opened for the other to depart.

The Caliph, who had at first been somewhat puzzled by the strangely conducted traffic which he here observed, had guessed before long that the actual business of this disreputable old merchant was that of purchasing from the thieves, which always infest a large town, whatever plunder they might have to dispose of.

There was no haggling as to price. The terms on which the transaction was based were evidently very simple. The thief displayed his wares; the old man paid him what he chose, and clearly the thief, whose market for his ill-gotten goods was likely to be very limited, was satisfied to accept what the buyer chose to award.