But they had not been deceived. Even at a distance Bart knew his friend the Beaver at a glance, and the would-be defenders of the camp saw the meeting, and the hearty handshaking that took place.

This was a relief, and the men of the expedition gazed curiously at the bronzed, well-armed horsemen of the plains, who sat their wiry, swift little steeds as if they were part and parcel of themselves, when they rode up to exchange greetings with the Doctor.

From that hour the Beaver’s followers took the place of the lancers, leading the van and closing up the rear, as well as constantly hovering along the sides of the long waggon-train, which they guarded watchfully as if it were their own particular charge.

The Doctor placed implicit reliance in the chief, who guided them by a longer route, but which proved to be one which took them round the base of the two mountainous ridges they had to pass, and thus saved the adventurers a long and arduous amount of toil with the waggons in the rugged ground.

At last, when they were well in sight of the flat-topped mountain, and the Doctor was constantly reining in his horse to sweep the horizon with his glass in search of the Apachés, the chief rode up to say that he and his men were about to advance on a scouting expedition to sweep the country between them and the canyon, while the train was to press on, always keeping a watchful look-out until their Indian escort returned.

The Beaver and his men scoured off like the wind, and were soon lost to view, while that night and the next day the long train moved slowly over the plain to avoid the dense clumps of prickly cactus and agaves, suffering terribly from thirst, for what had been verdant when Bart was there last was now one vast expanse of dust, which rose thickly in clouds at the tramp of horse or mule.

The want of water was beginning to be severely felt; and as they went sluggishly on, towards the second evening horses and mules with drooping heads, and the cattle lowing piteously, Bart, as he kept cantering from place to place to say a few encouraging words, knew that he could hold out no hope of water being reached till well on in the next day, and he would have urged a halt for rest, only that the Doctor was eager for them to get as well on their way as possible.

Night at last, a wretched, weary night of intense heat, and man and beast suffering horribly from thirst. The clouds had gathered during the night, and the thunder rolled in the distance, while vivid flashes of lightning illumined the plains,

but no rain fell, and when morning broke, after the most painful time Bart had ever passed, he found the Doctor looking ghastly, his eyes bloodshot, his lips cracked, and that even hardy Joses was suffering to as great an extent.