He descended into the same wild hall he had passed on the preceding night. He had scarcely reached the bottom of the stair-case, when a feeble light gleamed across the hall, and his eye caught the glimpse of a figure retiring through the low arched door which led to the south tower. He drew his sword and rushed on. A faint sound died away along the passage, the windings of which prevented his seeing the figure he pursued. Of this, indeed, he had obtained so slight a view, that he scarcely knew whether it bore the impression of a human form. The light quickly disappeared, and he heard the door that opened upon the tower suddenly close. He reached it, and forcing it open, sprang forward; but the place was dark and solitary, and there was no appearance of any person having passed along it. He looked up the tower, and the chasm which the stair-case exhibited, convinced him that no human being could have passed up. He stood silent and amazed; examining the place with an eye of strict enquiry, he perceived a door, which was partly concealed by hanging stairs, and which till now had escaped his notice. Hope invigorated curiosity, but his expectation was quickly disappointed, for this door also was fastened. He tried in vain to force it. He knocked, and a hollow sullen sound ran in echoes through the place, and died away at a distance. It was evident that beyond this door were chambers of considerable extent, but after long and various attempts to reach them, he was obliged to desist, and he quitted the tower as ignorant and more dissatisfied than he had entered it. He returned to the hall, which he now for the first time deliberately surveyed. It was a spacious and desolate apartment, whose lofty roof rose into arches supported by pillars of black marble. The same substance inlaid the floor, and formed the stair-case. The windows were high and gothic. An air of proud sublimity, united with singular wildness, characterized the place, at the extremity of which arose several gothic arches, whose dark shade veiled in obscurity the extent beyond. On the left hand appeared two doors, each of which was fastened, and on the right the grand entrance from the courts. Ferdinand determined to explore the dark recess which terminated his view, and as he traversed the hall, his imagination, affected by the surrounding scene, often multiplied the echoes of his footsteps into uncertain sounds of strange and fearful import. He reached the arches, and discovered beyond a kind of inner hall, of considerable extent, which was closed at the farther end by a pair of massy folding-doors, heavily ornamented with carving. They were fastened by a lock, and defied his utmost strength.