Any other leader but Alexander would have been appalled by the darkness drawn over the face of heaven just when he was starting on a voyage across an unknown river, with the enemy perhaps guarding the very bank to which his men were blindly and imprudently directing their course. But the king deriving glory from danger and regarding the darkness which terrified others as his opportunity, gave the signal that all should embark in silence, and ordered that the galley which carried himself should be the first to be run aground on the other side. The bank, however, towards which they steered was not occupied by the enemy, for Porus was in fact still intently watching Ptolemy only. Hence all the ships made the passage in safety except just one, which stuck on a rock whither it had been driven by the wind. Alexander then ordered the soldiers to take their arms and to fall into their ranks. _Chapter XIV.—Battle with Porus on the left bank of the Hydaspes—Porus being defeated surrenders_ He was already in full march at the head of his army, which he had divided into two columns, when the tidings reached Porus that the bank was occupied by a military force, and that the crisis of his fortunes was now imminent. In keeping with the infirmity of our nature, which makes us ever hope the best, he at first indulged the belief that this was his ally Abisares come to help him in the war as had been agreed upon. But soon after, when the sky had become clearer, and showed the ranks to be those of the enemy, he sent 100 chariots and 4000 horse to obstruct their advance. The command of this detachment he gave to his brother Hages.[246] Its main strength lay in the chariots, each of which was drawn by four horses and carried six men, of whom two were shield-bearers, two, archers posted on each side of the chariot, and the other two, charioteers, as well as men-at-arms, for when the fighting was at close-quarters they dropped the reins and hurled dart after dart against the enemy.