So they all went across the court yard, and approached the square tower. The guide explained to the boys that formerly the entrance was in the second story, through an opening in the wall, which he showed them. The way to get up to this opening was by a step ladder, which could be let down or drawn up by the people within, by means of chains coming down from a window above. The step ladder was, of course, entirely gone; but deep grooves were to be seen in the sill of the upper window, which had been worn by the chains in letting down and drawing up the ladder. To accommodate modern visitors a flight of loose stone steps had been laid outside the square tower, leading to a window in the lower story of it. Mr. George and the boys ascended these steps and went in. The lower room was the kitchen, and they were all much interested and amused in looking at the very strange and curious fixtures and contrivances which remained there--the memorials of the domestic usages of those ancient times. In a corner of the room was a flight of steps, built in the thickness of the wall, leading to the story above. This was the dining room and parlor of the castle. "It was here," said the guide, "according to the story of Walter Scott, that Douglass contrived to get possession of the castle keys. There was a window on one side of the room, from which there was a view, across the water of the lake, of the burying ground already mentioned. Lady Douglass, like almost every body else in those times, was somewhat superstitious, and William arranged it with a page that he was to pretend to see what was called a corpse light, moving about in the burying ground; and while his mother went to see, he shifted the keys which she had left upon the table, taking the true ones himself, and leaving the false ones in their place. "That is the story which Sir Walter Scott relates," said the guide; "but I am not sure that there is any historical authority for it." "And what became of Queen Mary, after she escaped in the boat?" asked Waldron. "O, there were several of her friends," said the guide, "waiting for her on the shore of the loch where she was to land, and they hurried her away on horseback to a castle in the south of Scotland, and there they gathered an army for her, to defend her rights." After this the boys looked down through a trap door, which led to a dark dungeon, where it is supposed that prisoners were sometimes confined. They rambled about the ruins for some time longer, and then they returned to the boat, and came back to the shore. When they arrived at the pier they paid the boatman his customary fee, which was about a dollar and a quarter, and then began to walk up towards the inn. "Well, boys," said Mr. George, "how did you like it?" "Very much indeed," said Waldron. "It is the best old castle I ever saw." "You will like the Palace of Holyrood better, I think," said Mr. George. "Where is that?" asked Rollo.