According to the single account, which tells us of these proceedings, Ptolemy himself appeared to conduct his own defence before the assembled warriors. He had good reason for reckoning on the impression his confidence in them would make upon them, and on the love that he knew the Macedonians bore towards him. He knew, too, of the increasing dislike of the imperial regent. His defence was heard with growing approval, and the army’s judgment was “freedom.”
In spite of this the regent kept to the war. The decision of the troops alienated him still more from them. The war with Egypt was contrary to their wishes, and they murmured openly. Perdiccas sought to put down the refractory spirit with a stern military hand, but the remonstrances of his officers were in vain. He treated the first in the land in an inconsiderate and despotic manner, removed the most deserving from their command, and trusted himself alone. This same man, who had climbed the path to greatness with so much foresight, self-command, energy, and statesmanship, seemed now, the nearer he grew to the summit of his ambition, to lose all clearness of sight and moderation, which traits alone could help him to take this last and dangerous step. He had the advantage of tried troops, the elephants of Alexander, and the fleet under the command of his brother-in-law was near the mouth of the Nile; but he had overstepped the mark.
Just at this time, the news reached him from Asia Minor that Eumenes had conquered Neoptolemas, the governor of Armenia, who had taken the side of Ptolemy.
With all the more hope, Perdiccas went to meet the enemy. He reached Pelusium undisturbed. It was highly necessary that the army should cross to the Pelusaic side of the Nile, for there were several secure places there, which, if allowed to remain in the hands of the enemy, would endanger the forward movement.
There were also plentiful supplies of provisions within the Delta, whilst the way through the so-called Arabia was sparsely inhabited.
If he did not find the Egyptians there, Perdiccas would install himself within one of the fortresses on that side, and thence conduct operations against them, and, at the same time, remain in connection with his fleet, on which he could fall back in case of need. To enable the crossing to be accomplished as easily as possible, Perdiccas ordered the cleaning out of an old and filled-in canal, that led up from the Nile. The work was evidently begun without much thought, for the fact had not been considered that, at the rising of the Nile, the canal would want a much deeper bed than the present stream required. The canal had only just been opened up, when the water rose with unusual force and rapidity; the dam was completely destroyed, and many workers lost their lives. During the disturbance, many officers and men left the camp and hurried to Ptolemy. This was the beginning of the Egyptian war. The desertion of so many important men made Perdiccas think seriously. He summoned the officers of the army, spoke to them with much condescension, gave presents to some, honoured others with promotion, and begged them, for the sake of their honour and for the cause of their kings, to fight their hardest against this rebel, and with the order to hold their men in-readiness, he left them. The army was only told in the evening, at the signal for starting, where they were to march. Perdiccas feared, on account of the desertion that was taking place in his army, that his march might be discovered by the enemy. They marched with great speed through the night, and camped at last on the side of the river. At daybreak, after the troops had rested, Perdiccas gave the order to cross. First came the elephants, then the light infantry, next the storming party with ladders, and lastly, the pick of the cavalry, who, if the enemy should burst out during the storming, could easily drive them back. Perdiccas hoped, if he could only get a firm footing on that side of the river, to annihilate the Egyptian army easily with his superior force. He was right in feeling that his Macedonian troops, when face to face with the enemy, would forget their antipathy to him, and think only of their military honour. When about half the army had crossed, and just as the elephants were moving towards the fortress, the enemy were seen hurrying thither with great speed; their trumpet-calls and war-cries even were heard. They reached the fort before the Macedonians, and withdrew into the shelter of its walls. Not discouraged by this, the infantry stormed the fort. Ladders were placed against the walls, the elephants driven forward, and palisades taken from their backs to attack the ramparts.
Ptolemy, in the dress of a Macedonian soldier, stood on the wall surrounded by a few selected men. He was first in the fight. From where he stood he pierced with his lance the eyes of the leading elephant, and stabbed the Indian on its back, and he wounded many and killed numbers of the storming party. His officers and men fought with the greatest spirit; the driver of the second elephant was killed and the infantry were driven back.
Perdiccas led new troops to the attack, wishing to take the fortress at all costs. By word and deed, Ptolemy urged on his men, who fought with marvellous endurance. The dreadful battle waged the whole day; many were killed and wounded; evening came on and nothing was decided. Perdiccas ordered a retreat and returned to his camp.