With a sharp creak the heavy gate was loosened, and the flood that rushed beneath it helped to force it upward.

Roaring angrily, the water foamed into the gorge, filling it from side to side with a torrent ten feet deep that dashed impatiently against the walls of the tortuous channel.

The guardsmen had no chance to escape. Like men of straw, they were lifted, horse and rider together, whirled over and over, and swept down the valley on the crest of the yellow wave. Their cries were choked in the rush of the water.

Nathan and Clearchus dropped their levers and stood gazing at the surface of the turbid stream. Chares joined them.

"It is a pity," he said regretfully. "They deserved a better death. I wish we could have had a bout with them; but it may be all for the best. Let them go as a sacrifice to My Lady Beltis. By Dionysus, she has given us back our horses, too! Look here!"

One of the Nisæans had gained the top of the dam and another was close behind him. The third had been overtaken by the flood and was struggling piteously for a foothold with his fore feet. Chares caught him by the bit and dragged him up to safety. They mounted and struck off at random among the hills, seeking to get as far away as possible before daylight should break.

This was the only direct encounter that they had with the soldiers of the pursuit. Skirting the desert, they made their way northward and westward until all danger of capture had passed. Once, in seeking to cross an arm of the sandy waste, they went astray and nearly perished from thirst. On another occasion they were surrounded by a band of robbers, from whom they barely escaped. This last adventure took place on the eastern slope of Mount Amanus on the borders of Cilicia, where they arrived after a month of wandering. It was here that they began once more to hear the name of Alexander and to feel the currents of the mighty storm that was gathering on the flank of the empire of Darius.

CHAPTER XXX

LEONIDAS UNDERTAKES A MISSION