Nevertheless, Randolph did not hesitate to attempt the adventure. He took with him only thirty men (you may be sure they were chosen for activity and courage), and came one dark night to the foot of the rock, which they began to ascend under the guidance of Francis, who went before them, upon his hands and feet, up one cliff, down another, and round another, where there was scarce room to support themselves. All the while, these thirty men were obliged to follow in a line, one after the other, by a path that was fitter for a cat than a man. The noise of a stone falling, or a word spoken from one to another, would have alarmed the watchmen. They were obliged, therefore, to move with the greatest precaution. When they were far up the crag, and near the foundation of the wall, they heard the guards going their rounds, to see that all was safe in and about the castle. Randolph and his party had nothing for it but to lie close and quiet, each man under the crag, as he happened to be placed, and trust that the guards would pass by without noticing them. And while they were waiting in breathless alarm they got a new cause of fright. One of the soldiers of the castle, willing to startle his comrades, suddenly threw a stone from the wall, and cried out, “Aha, I see you well!” The stone came thundering down over the heads of Randolph and his men, who naturally thought themselves discovered. If they had stirred, or made the slightest noise, they would have been entirely destroyed; for the soldiers above might have killed every man of them, merely by rolling down stones. But being courageous and chosen men, they remained quiet, and the English soldiers, who thought their comrade was merely playing them a trick (as, indeed, he had no other meaning in what he said) passed on without further examination.
Then Randolph and his men got up and came in haste to the foot of the wall, which was not above twice a man’s height in that place. They planted the ladders they had brought, and Francis mounted first to show them the way; Sir Andrew Grey, a brave knight, followed him, and Randolph himself was the third man who got over. Then the rest followed. When once they were within the walls, there was not so much to do, for the garrison were asleep and unarmed, excepting the watch, who were speedily destroyed. Thus was Edinburgh Castle taken in March, 1312.