“Look for yourselves,” Mr. Lewis said gravely. “The camel’s weight was too great to come continually against the rather fragile limbs, and the hind ones snapped in two.”

The explorers’ faces were greatly sobered by the dread discovery. Now there was but one thing to do. The unfortunate beast must be left to die a slow and torturing death. There was no other way out, for the legs could not be set, and the beast could not be taken on.

Mr. Holton unstrapped his rifle from his shoulder.

“I’m going to put an end to it,” he said with a sudden decision. “It seems only humane, for otherwise death will come slowly and horribly.”

He walked over to a small elevation along the side of the dune, while his friends moved away to a safe distance.

After a moment of careful aim, he pulled the trigger.

The high-velocity bullet sped true, penetrating the brain.

There was but one spasmodic movement; then the camel rolled over, dead.

For some time the explorers were silent. It was not pleasant to see the useful dromedary come to such an end. Finally Joe began the ascent of the dune.