The last expedient was proposed by their general. It was daring, and seemed desperate, to seek to escape over the blockading wall with its armed guards. So desperate did it appear that half the garrison feared to attempt it, deeming that it would end in certain death. The other half, more than two hundred in number, decided that it was better to dare death in the field than to meet death in the streets.
The wall was furnished with frequent battlements and occasional towers, and its whole circuit was kept under watch day and night. But as time went on the besiegers grew more lax in discipline, and on wet nights sought the shelter of the towers, leaving the spaces between without guards. This left a chance for escape which the Platæans determined to embrace.
By counting the layers of bricks in the blockading wall they were able to estimate its height, and prepared ladders long enough to reach its top. Then they waited for a suitable time. At length it came, a cold, dark, stormy December night, with a roaring wind, and showers of rain and sleet.
The shivering guards cowered within their sheltering towers. Out from their gates marched the Platæans, lightly armed, and, to avoid any sound, with the right foot naked. The left was shod, that it might have firmer hold on the muddy ground. Moving with the wind in their faces, and so far apart that their arms could not strike and clatter, they reached and crossed the ditch and lifted their ladders against the wall. Eleven men, armed only with sword and breastplate, mounted first. Others bearing spears followed, leaving their shields for their comrades below to carry up and hand to them. This first company was to attack and master the two towers right and left. This they did, surprising and slaying the guards without the alarm having spread. Then the others rapidly mounted the wall.
At this critical moment one of them struck a loose tile with his foot and sent it clattering down the wall. This unlucky accident gave the alarm. In an instant shouts came from the towers, and the garrison below sprang to arms and hurried to the top of the wall. But they knew not where to seek the foe, and their perplexity was increased by the garrison within the city, which made a false attack on the other side.
Not knowing what to do or where to go, the blockaders remained at their posts, except a body of three hundred men, who were kept in readiness to patrol the outside of the outer ditch. Fire-signals were raised to warn their allies in Thebes, but the garrison in the town also kindled fire-signals so as to destroy the meaning of those of the besiegers.
Meanwhile the escaping warriors were actively engaged. Some held with spear and javelin the towers they had captured. Others drew up the ladders and planted them against the outer wall. Then down the ladders they hurried, waded across the outer ditch, and reached level ground beyond. Each man, as he gained this space, stood ready with his weapons to repel assault from without. When all the others were down, the men who had held the towers fled to the ladders and safely descended.
The outer ditch was nearly full of water from the rain and covered with thin ice. Yet they scrambled through it, and when the three hundred of the outer guard approached with torches, they suddenly found themselves assailed with arrows and javelins from a foe invisible in the darkness. They were thus kept back till the last Platæan had crossed the ditch, when the bold fugitives marched speedily away, leaving but one of their number a prisoner in the hands of the foe.
They first marched towards Thebes, while their pursuers took the opposite direction. Then they turned, struck eastward, entered the mountains, and finally—two hundred and twelve in number—made their way safely to Athens, to tell their families and allies the thrilling story of their escape.
A few who lost heart returned from the inner wall to the town, and told those within that the whole band had perished. The truth was only learned within the town when on the next morning a herald was sent out to solicit a truce for burial of the dead bodies. The herald brought back the glad tidings that there were no dead to bury, that the whole bold band had escaped.