All this was not the cause of my first bit of fainting. The shocking ordeal was cumulative, and the beginning of the later terrors was a very perceptible increase in my rate of descent. They were paying out that infinitely long rope very swiftly now, and I scraped cruelly against the rough and constricted sides of the shaft as I shot madly downward. My clothing was in tatters, and I felt the trickle of blood all over, even above the mounting and excruciating pain. My nostrils, too, were assailed by a scarcely definable menace; a creeping odor of damp and staleness curiously unlike anything I had ever smelt before, and having faint overtones of spice and incense that lent an element of mockery.