We were all glad to repose beneath the shade of the first over-hanging rock we came to, although, by pressing further upward, we might have attained to a pleasanter spot.

Looking back toward the Gap, we marked the strange contrast of the smiling country bordering the river, and the dreary, monotonous plain we had traversed.

After gazing on the distant scene, we produced our store of provisions, and were busily engaged, when Knips (our constant companion) suddenly began to snuff and smell about in a very ridiculous way; finally, with a shriek which we knew was expressive of pleasure, he set off at a full speed, followed by all the dogs, up a sort of glen behind us.

We left them to their own devices, being far too pleasantly engaged with our refreshments to care much what fancy the little rogue had got in his head.

When hunger was somewhat appeased, Fritz once more cast his eyes over the expanse of plain before us, and after looking fixedly for a moment, exclaimed:

"Is it possible that I see a party of horsemen riding at full gallop toward us! Can they be wild Arabs of the desert?"

"Arabs my boy! certainly not; but take the spyglass and make them out exactly. We shall have to be on our guard, whatever they are!"

"I cannot see distinctly enough to be sure," said he presently, "and imagination supplies the deficiency of sight in most strange fashion. I could fancy them wild cattle, loaded carts, wandering haycocks, in fact most anything I like."

The spyglass passed from hand to hand; Jack and Ernest agreed in thinking the moving objects were men on horseback; but when it came to my turn to look, I at once pronounced them to be very large ostriches.

"This is fortunate, indeed!" I exclaimed; "we must try to secure one of these magnificent birds; the feathers alone are worth having."