Now the time was come.

The people of the catacombs acquired a super-sensitive power of hearing, and Soames was able at this time to detect, as he sat or lay in his own room, the movements of persons in the corridor outside and even in the cave of the golden dragon. That mysterious trap in the wall gave him many qualms, and to-night he had glanced at it a thousand times. He held the pistol in his hand, and buttoned up within his coat was the leather case. Only remained the opening of his door in order to learn if the lights were extinguished in the corridor.

He did not anticipate any serious difficulty, provided he could overcome his constitutional nervousness. In his waistcoat pocket was a brand new Yale key which, his latest employer had assured him, fitted the lock of the end door of Block A. The door between the cave of the dragon and Block A was never locked, so far as Soames was aware, nor was that opening from the corridor in which his own room was situated. Therefore, only a few moments—fearful moments, certainly—need intervene, ere he should have a companion; and within a few minutes of that time, the police—his friends!—would be there to protect him! He recognized that the law, after all, was omnipotent, and of all masters was the master to be served.

There was no light in the corridor. Leaving his door ajar, he tiptoed cautiously along toward the cave. Assuring himself once again that the pistol lay in his pocket, he fumbled for the lever which opened the door, found it, depressed it, and stepped quietly forward in his slippered feet.

The unmistakable odor of the place assailed his nostrils. All was in darkness, and absolute silence prevailed. He had a rough idea of the positions of the various little tables, and he stepped cautiously in order to skirt them; but evidently he had made a miscalculation. Something caught his foot, and with a muffled thud he sprawled upon the floor, barely missing one of the tables which he had been at such pains to avoid.

Trembling like a man with an ague, he lay there, breathing in short, staccato breaths, and clutching the pistol in his pocket. Certainly he had made no great noise, but...

Nothing stirred.

Soames summoned up courage to rise and to approach again the door of Block A. Without further mishap he reached it, opened it, and entered the blackness of the corridor. He could make no mistake in regard to the door, for it was the end one. He stole quietly along, his fingers touching the matting, until he came in contact with the corner angle; then, feeling along from the wall until he touched the strip of bamboo which marked the end of the door, he probed about gently with the key; for he knew to within an inch or so where the keyhole was situated.

Ah! he had it! His hand trembling slightly, he sought to insert the key in the lock. It defied his efforts. He felt it gently with the fingers of his left hand, thinking that he might have been endeavoring to insert the key with the irregular edge downward, and not uppermost; but no—such was not the case.

Again he tried, and with no better result. His nerves were threatening to overcome him, now; he had not counted upon any such hitch as this: but fear sharpened his wits. He recollected the fall which he had sustained, and how he had been precipitated upon the polished floor, outside.