As the strange creature that had threatened to dispute their passage was no longer in sight, and seemed, moreover, to have gone clear away, the three mids ceased to think any more of it,—their minds being given to making their way over the ridge without being seen by the occupants of the encampment.

Having returned their dirks to the sheath, they continued to advance towards the crest of the transverse sand-spar, as cautiously as at starting.

It is possible they might have succeeded in crossing, without being perceived, but for a circumstance of which they had taken too little heed. Only too well pleased at seeing the strange quadruped make its retreat, they had been less affected by its parting salutation,—weird and wild as this had sounded in their ears. But they had not thought of the effects which the same salute had produced upon the people of the Arab camp, causing all of them, as it did, to turn their eyes in the direction whence it was heard. To them there was no mystery in that screaming cachinnation. Unearthly as it had echoed in the ears of the three mids, it fell with a perfectly natural tone on those of the Arabs: for it was but one of the well-known voices of their desert home, recognized by them as the cry of the laughing hyena.

The effect produced upon the encampment was twofold. The children straying outside the tents,—like young chicks frightened by the swooping of a hawk,—ran inward; while their mothers, after the manner of so many old hens, rushed forth to take them under their protection. The proximity of a hungry hyena,—more especially one of the laughing species,—was a circumstance to cause alarm. All the fierce creature required was a chance to close his strong, vice-like jaws upon the limbs of one of those juvenile Ishmaelites, and that would be the last his mother should ever see of him.

Knowing this, the screech of the hyena had produced a momentary commotion among the women and children of the encampment. Neither had the men listened to it unmoved. In hopes of procuring its skin for house or tent furniture, and its flesh for food,—for these hungry wanderers will eat anything,—several had seized hold of their long guns, and rushed forth from among the tents.

The sound had guided them as to the direction in which they should go; and as they ran forward, they saw, not a hyena, but three human beings just mounting upon the summit of the sand-ridge, under the full light of the moon. So conspicuously did the latter appear upon the smooth crest of the wreath, that there was no longer any chance of concealment. Their dark blue dresses, the yellow buttons on their jackets, and the bands around their caps, were all discernible. It was the costume of the sea, not of the SaÄra. The Arab wreckers knew it at a glance; and, without waiting to give a second, every man of the camp sallied off in pursuit,—each, as he started, giving utterance to an ejaculation of surprise or pleasure.

Some hurried forward afoot, just as they had been going out to hunt the hyena; others climbed upon their swift camels; while a few, who owned horses, thinking they might do better with them, quickly caparisoned them, and came galloping on after the rest; all three sorts of pursuers,—foot-men, horsemen, and maherrymen,—seemingly as intent upon a contest of screaming, as upon a trial of speed!

It is needless to say that the three midshipmen were, by this time, fully apprised of the "hue and cry" raised after them. It reached their ears just as they arrived upon the summit of the sand-ridge; and any doubt they might have had as to its meaning, was at once determined, when they saw the Arabs brandishing their arms, and rushing out like so many madmen from among the tents.

They stayed to see no more. To keep their ground could only end in their being captured and carried prisoners to the encampment; and after the spectacle they had just witnessed, in which the old man-o'-war's-man had played such a melancholy part, any fate appeared preferable to that.

With some such fear all three were affected; and simultaneously yielding to it, they turned their backs upon the pursuit, and rushed headlong down the ravine, up which they had so imprudently ascended.