With some skill, Darius’ army passed from the East into Cilicia, and thus got behind Alexander, who had gone two days’ march into Syria; but on the tidings he turned back at once, and found that they had not guarded the passes between him and them.  So he attacked them close to Issus, and there again gained a great victory.  When Darius saw his Immortals giving way, he was seized with terror, sprang out of his royal chariot, mounted on horseback, and never rested till he was on the other side of the Euphrates.