The horror of the experience deepened with every dragging second. That any descent through the sheer solid rock could be so vast without reaching the core of the planet itself, or that any rope made by man could be so long as to dangle me in these unholy and seemingly fathomless profundities of nether earth, were beliefs of such grotesqueness that it was easier to doubt my agitated senses than to accept them. Even now I am uncertain, for I know how deceitful the sense of time becomes when one or more of the usual perceptions or conditions of life is removed or distorted. But I am quite sure that I preserved a logical consciousness that far; that at least I did not add any full-grown phantoms of imagination to a picture hideous enough in its reality, and explicable by a type of cerebral illusion vastly short of actual hallucination.