With a quick rush he flung me away, and in the same second I fired. The roar of the shot in the narrow corridor seemed interminable. I flung myself on the floor, expecting a return shot, and quickly enough a flash broke upon the darkness dead ahead, and I rose to my feet, fired again and leaped to the opposite side of the corridor and crouched there. We had adopted the same tactics, firing and dodging to avoid the target made by the flash of our pistols, and watching and listening after the roar of the explosions. It was a very pretty game, but destined not to last long. He was slowly retreating toward the end of the passage, where there was, I remembered, a dead wall. His only chance was to crawl through an area window I knew to be there, and this would, I felt sure, give him into my hands.

After five shots apiece there was a truce. The pungent smoke of the powder caused me to cough, and he laughed.

“Have you swallowed a bullet, Mr. Glenarm?” he called.

I could hear his feet scraping on the cement floor; he was moving away from me, doubtless intending to fire when he reached the area window and escape before I could reach him. I crept warily after him, ready to fire on the instant, but not wishing to throw away my last cartridge. That I resolved to keep for close quarters at the window.

He was now very near the end of the corridor; I heard his feet strike some boards that I remembered lay on the floor there, and I was nerved for a shot and a hand-to-hand struggle, if it came to that.

I was sure that he sought the window; I heard his hands on the wall as he felt for it. Then a breath of cold air swept the passage, and I knew he must be drawing himself up to the opening. I fired and dropped to the floor. With the roar of the explosion I heard him yell, but the expected return shot did not follow.

The pounding of my heart seemed to mark the passing of hours. I feared that my foe was playing some trick, creeping toward me, perhaps, to fire at close range, or to grapple with me in the dark. The cold air still whistled into the corridor, and I began to feel the chill of it. Being fired upon is disagreeable enough, but waiting in the dark for the shot is worse.

I rose and walked toward the end of the passage.