“Yes, and every bottle and tin as well.”

“Good,” said Griggs; “then the sooner we’re off the better.”

Wilton sighed as they mounted, and gave a last glance at the beauties of the gully in which they had encamped, and again soon after as the little train wound on, with Skeeter’s bell chiming to the motion of his head, for at a turn before descending to the lower ground he had a glimpse of the far-spreading desert they were about to attack. It was beautiful in its way, but the grey monotony soon palled upon him who looked, and the eyes eagerly turned again to the refreshing green.

In a couple of hours the last shrub had been left behind, and every one drew his breath hard and set his teeth, in the determination not to be baffled by the lesser troubles likely to hinder their way; but all the same, sighs once more rose for the beauty of the scenes and the refreshing breath of the mountains, which was already rapidly giving place to the hot reek of the sand and salt.

For a time the boys were startled into wonderment at the change which came over the scene as the sun rose higher, for as the hazy mist that overspread the plain began to rise, there before them lay spread-out a wonderful expanse of water, one huge lake extending right to the horizon, dotted here and there with islands of beautiful form.

“Why, I didn’t know—” began Chris.

“Nor I,” cried Ned. “We shan’t want for water.”

They pressed on to join the doctor and Griggs, who were once more leading, and before either of the boys could open his lips to question, the former exclaimed—

“There, boys, you never saw the mirage so beautiful as that.”

“Mirage! Then it isn’t water?”