Indeed, the vine that spread its dark green splendor over the whole north side of the great structure and wrapped itself around the giant chimney had a stem that was more like the trunk of a small tree and very tough and fibrous. Jim did not hesitate, but quickly removed his shoes, and with both free hands, noiselessly climbed up towards the window, sustaining his weight partially on the rough jutting bricks until he finally reached in safety the broad sill of the mullioned window. "So far so good," he murmured, "now to get inside." Very slowly and cautiously he pushed on the lower part of the center window and it gave easily enough, the gang in foolhardy security never dreaming that an enemy would dare approach their stronghold, much less come into their very castle. Indeed, their confidence was in some measure justified, for their head and chief, old Captain Broome, was very powerful through this section, had strong friends among the officials in the city and was safe from being bothered by the authorities. As for private enemies, he could very well take care of them himself. So without any trouble at this point Jim slipped through the window and was within the castle of his bitterest enemy. He let himself down from the window, to a settee, and thence to the floor. By the dim light from the windows he saw that he was in a long, rectangular-shaped room, evidently lined with bookcases, and in the dimness at one end loomed the outline of a huge fireplace. For the moment Jim felt a thrill of excitement go through him. There was something in the fact that he was alone and unarmed in the house of his foes, quite enough to give him this sensation. Suppose that you were standing in the darkness in a cage where some lions were stretched out asleep but liable to awake at any moment, you might be excused if you had a few shivery thrills, and so it was with Jim. It was evident that this room was not in general use and our adventurer could not have chosen a better place to land as it were. He stopped only long enough for his eyes to become accustomed to the lack of light and then he made sure that there was nothing in the room that would serve him for a weapon. "Might take a dictionary and throw some of the hard words at 'em," he remarked with his usual humorous twist of imagination when in a tight place. Then he cautiously opened a door which led into a long, wide corridor that was decidedly dark, except at the further end, where shone a faint light. Keeping close to the wall, he went softly along until he came to the main staircase, which surprised Jim with the winding sweep of its magnificence and the beautiful stained glass window above it. But there was that in the large hall below that made him draw back.