They were a great deal relieved to find that they were not to be this time tortured; but they knew only too well what punishment it was that they were to witness, and they felt their hearts sicken within them. They both knew that the advice they had just received was good, and resolved, if possible, to abide by it. They therefore followed their leader along the corridor in silence, while the masked men with swords fell in behind them as soon as they had passed, effectually preventing any attempt on their part at escape. Up the passage they went, reached the end of it, and then turned to the right, afterwards climbing up a long flight of steps. This brought them to another long passage, but much wider than the one leading to their own cell. It was also covered with some kind of matting, and several doors opened into the corridor. Along this corridor they went, and came presently to another large door, through which they passed, finding themselves in a large and lofty room. This was somewhat dark, and, after the light through which they had just passed, they could not for a few moments discern the objects contained therein. Then, as their eyes became more accustomed to the half-light, they perceived, hanging on the wall, strange instruments of iron and wood, and in different places in the apartment were standing curious-looking machines, the use of which they could only imagine with a shudder. The door through which they had just entered was closed and locked, and, turning round, the two friends saw that the masked guards had vanished, as also had the guide who had conducted them thither. But the chamber was tenanted by several funereal figures in black, all with their faces hidden, and whose movements even seemed to suggest something horrible and repulsive. In silence one of the masked figures took down an instrument from the wall, and walked to the opposite end of the room, where stood another group of men in black, with cowled heads. The lads watched, as if fascinated, and with an inward feeling that something dreadful was about to occur. They could perceive a certain dim outline of something that looked like a framework of timber, but its complete shape was hidden from them by the figures of those who were standing in between. All the masked men appeared to the boys to be waiting for something or someone before they proceeded with whatever they were preparing to do. As they stood there, frozen into rigidity and silence by a dreadful and indefinable sensation of horror, they heard a fluttering sigh coming from the opposite end of the room, apparently from somewhere near the mysterious framework.