At[35] a subsequent period, the inhabitants of Argos despatched ambassadors to Pyrrhus and Antigonus to entreat them to withdraw their troops, and not reduce their city into subjection to either of them, but to allow it to continue in a state of friendship with both. Antigonus readily consented, and sent his son as a hostage to the Argives. Pyrrhus, also, promised to retire; but as he offered no security for the fulfilment of his word, they began to suspect his sincerity; and, indeed, with sufficient reason: for as soon as night appeared, he advanced to the walls, and having found a door left open by Aristæus, he had time to force his Gauls into the city; and so seize it without being perceived. But when he would have introduced his elephants, he found the gates too low; which obliged him to cause the towers to be taken down from their backs, and replaced there when those animals had entered the city. All this could not be effected amidst the darkness without much trouble, noise, and confusion, which caused them to be discovered. The Argives, when they beheld the enemy in the city, fled to the citadel, and to those places that were most advantageous in their defence, and sent a deputation to Antigonus, to press his speedy advance to their assistance. He accordingly marched that moment, and caused his son, with the other officers, to enter the city at the head of his best troops. In this very juncture of time, King Areus also arrived at Argos, with a thousand Cretans, and as many Spartans as were capable of coming. These troops, when they had all joined each other, charged the Gauls with the utmost fury, and put them into disorder. Pyrrhus hastened, on his part, to sustain them; but the darkness and confusion was then so great, that it was impossible for him to be either obeyed or heard. When day appeared, he was not a little surprised to see the citadel full of enemies; and as he then imagined all was lost, he thought of nothing but a timely retreat. But as he had some apprehension with respect to the city gates, which were much too narrow, he sent orders to his son, Helenus, whom he had left without with the greatest part of the army, to demolish part of the wall, that his troops might have a free passage out of the city. The person to whom Pyrrhus gave this order in great haste, having misunderstood his meaning, delivered a quite contrary message; in consequence of which, Helenus drew out his best infantry, with all the elephants he had left, and then advanced into the city to assist his father, who was preparing to retire, the moment the other entered the place.