At last the elephants took flight, and rushed headlong against the Persians, trampling them underfoot. This particular danger had been foreseen by the barbarian tacticians. The previous instance of the battle under Nizibis had shown that an army may be defeated by its own allies. Now the mahouts began to slash the monsters with curved cutlasses between the two joints of the spine lying nearest the skull; a single blow in this exact spot sufficing to kill outright the largest and strongest of the great beasts. The cohorts of Martiobarbuli charged, clambering over the wounded and pursuing those in flight. At this instant Julian galloped to support the left wing. On that side rode the Persian _Clibanarii_, a famous body of cavalry, bound man to man by a strong chain, and clad in invulnerable scale-armour. They received the waves of battle like a row of bronze equestrian statues. They could only be wounded through narrow slits left for mouth and eyes. Against the Clibaniars Julian sent his old faithful friends, the Batavians and the Celts. They would die for a smile from Cæsar, gazing at him with eyes of childlike adoration. The right wing of the Romans was assailed by Persian chariots, drawn by galloping zebras. Scythes were affixed to their axles, which, sweeping along with incredible swiftness, mowed legs from horses and heads from soldiers, and lopped bodies in half, easily as the reaper's sickle takes the corn. Towards the end of the day, weighed down in their overheated armour, the Clibaniars wavered. Julian massed all his forces against them. They broke, and re-formed, but their ranks at last became confused and fled. A cry of triumph broke from the Emperor's lips. He galloped ahead, pursuing the fugitives, not perceiving that he was far in advance of his main body. A few body-guards surrounded the Cæsar, amongst them old General Victor. This old man, though wounded in the hand, was unconscious of his hurt, not quitting the Emperor's side for a moment, and shielding him time after time from mortal blows. He knew that it was as dangerous to approach a fleeing army as to enter a falling building. "Take heed, Cæsar!" he shouted. "Put on this mail of mine!" but Julian heard him not, and still rode on, on--his breast lying bared to drink in the wind--as if he, unsupported, unarmed, and terrible, was hunting his countless enemies by glance and gesture only from the field. Laughter was on his lips; through the cloud of dust, raised by the furious gallop of the horse, shone the Boeotian helmet, and the outspread folds of his chlamys streamed into two great wings of purple, that seemed to bear him farther and yet farther. In front, a small detachment of Saracens was in flight. One of these horsemen, turning in his saddle, recognised Julian by his raiment, and pointing him out to his comrades, uttered a guttural cry like that of an eagle-- "_Malek, malek!_ ... The king, the king!"