West, in reality, was more afraid than I; for his abominable pursuits entailed a life of furtiveness and dread of every shadow. Partly it was the police he feared; but sometimes his nervousness was deeper and more nebulous, touching on certain indescribable things into which he had injected a morbid life, and from which he had not seen that life depart. He usually finished his experiments with a revolver, but a few times he had not been quick enough. There was that first specimen on whose rifled grave marks of clawing were later seen. There was also that Arkham professor’s body which had done cannibal things before it had been captured and thrust unidentified into a madhouse cell at Sefton, where it beat the walls for sixteen years. Most of the other possibly surviving results were things less easy to speak of—for in later years West’s scientific zeal had degenerated to an unhealthy and fantastic mania, and he had spent his chief skill in vitalising not entire human bodies but isolated parts of bodies, or parts joined to organic matter other than human. It had become fiendishly disgusting by the time he disappeared; many of the experiments could not even be hinted at in print. The Great War, through which both of us served as surgeons, had intensified this side of West.