Three of the Arabs had divested themselves of the upper part of their clothing, and had accomplished what is termed in Scripture the girding up of their loins. The others made no preparations for the rush whatever.

Reeves was perfectly correct in his surmise. The Arabs do not take readily to the use of firearms, and the primitive instinct to close with their adversaries is still strong within them.

"Here they come!"

A volley, sounding almost like a single shot, whistled over the defenders' heads, or else the bullets flattened against the rock. Dropping their firearms, the men picked up their spears or swords, and, with a fierce yell, rushed with incredible velocity upon the apparently defenceless unbelievers.

Reeves let them come to within thirty yards of the rock.

"Not yet," he cautioned hurriedly, as the lads bravely stood up to meet their savage foes.

Steadying the muzzle of his pistol in the hollow of his left arm, the correspondent took careful aim full at the heaving chest of the foremost Arab, a mop-haired Baggara, who was brandishing a long, double-handed sword.

The pistol flashed; there was a report like the crack of a whip; but still the Arabs bounded towards the defenders.

Crack! Another shot. An Arab immediately behind the swordsman sprang up in the air and fell, and a second later the Baggara faltered, turned twice round, and dropped, still grasping his gleaming weapon.

Then the lads hurled their missiles. Hugh's stone caught one of the assailants full in the forehead, toppling him over like a second Goliath; but Gerald's aim was faulty, and his stone whizzed handsomely by a tall, lithe spearman.