Surprised to find it not a fixture, he pulled it towards him, and found that it slowly yielded to the impulse. Drawing it out of the socket, he saw it followed by an iron chain, which for a time resisted all his efforts, but at length gave way, and he heard a grating sound like the drawing of a rusty bolt. Suddenly the entire pannel shook, and then the lower end started back sufficiently to betray a recess in the wall. Hastily descending on his comrade's shoulders, and pushing back the pannel, he discovered that it was supported by hinges, and was doubtless intended to conceal a secret issue from the castle, which he soon ascertained, and effected his escape. These facts were all that the memory of Ibrahim could supply; but they were enough to guide him in his search, and he immediately proceeded to sound the pannels in succession with his fist. Commencing with the southern or outer wall, which he supposed more massive and more likely to contain a secret passage, he sounded each pannel, and perceiving in the corner one more reverberation than in the others, he roused Hassan from his slumbers. "Hassan! Hassan!" he exclaimed, "Arouse thee, man! and listen to good tidings." The awakened sleeper gazed with half-opened eyes upon his excited companion, and would have dropped to sleep again had not a few words of explanation and the hope of escape fully roused him. Having with some difficulty perched his rotund person upon the ample shoulders of Ibrahim, he followed his directions and grasped the wooden boss, which, to the inexpressible delight of both, yielded, as it had done forty years before to the captive Turk, and displayed the iron chain. Bidding Hassan replace the boss, Ibrahim determined to postpone his attempt until the festival had collected all the guards and menials into the central edifice and its approaches. An hour before midnight, when the young Moslem expected the revelry would be at its height, Hassan again mounted upon his shoulders, and after many strenuous efforts, at length succeeded in drawing up the bolt. The pannel receded some inches, and Ibrahim raising it still further, seized the lamp and entered a small oblong recess in the wall, which was not less than ten or twelve feet in thickness. Perceiving no outlet, he examined the wooden flooring, and soon discovered a trap, which, when raised by the ring attached, exposed to view a steep and narrow descending staircase, leading apparently to some sally-port beyond the castle ditch. After carefully trimming his lamp, he was about to lead the way into this dark abyss, when a sound, sharp and sudden, as of something falling in the adjacent prison, caught his ear. Retracing his steps, he re-entered the apartment, where, after a brief search, he found beneath one of the embrasures a paper folded round a large pebble. Hastily opening it, the following lines, written in the _lingua Franca_ so common in the Levant, were visible.