Instantly he communicated his discovery to the others and they sank down behind the rocks that shielded them from view.

“They’re coming fast,” muttered the captain, “and they are coming in the direction we came. If it’s that Tezra bunch, they’re tired of pussyfooting.”

“They may think that the time has come to attempt to capture us and make us lead them to the place we’re seeking,” murmured Phalos.

As the cavalcade drew nearer it could be seen that it comprised more than a dozen heavily-armed riders of fierce appearance.

“Bedouins whom Tezra has enlisted by promise of loot,” conjectured Phalos.

The captain slipped his glasses to Don, who was lying close beside him.

“You know the rascals better than I do,” he said. “See if you can recognize them.”

Don focused the glasses on the leaders.

“There they are!” he whispered excitedly. “Tezra and Nepahak! Those two in front.”

“As I suspected,” muttered the captain.