For some reason he had been unable to sleep on that night on which he had completed his proof that the Whymper incident had been engineered by Roper. French, as a rule, was a sound sleeper: he was usually too tired on getting to bed to be anything else. But on the rare occasions when he remained wakeful he nearly always turned the circumstance to advantage by concentrating on the difficulty of the moment. His brain at such times seemed more active than normally, and more than one of his toughest problems had been solved during the hours of darkness. It was true that he frequently reached conclusions which in the sober light of day appeared fantastic and had to be abandoned, but valuable ideas had come so often that when up against a really difficult case he had thankfully welcomed a sleepless night in the hope of what it might bring forth. On this occasion, when he had employed all the conventional aids to slumber without effect, he turned his attention to the one problem in the Starvel Hollow tragedy which up to now had baffled him: the cause of Roper’s fate. How had the man come to lose his life? What terrible mistake had he made? How had Nemesis overtaken him? French felt he could see the whole ghastly business taking place, excepting always this one point. And the more he thought of it, the more difficult it appeared. It seemed almost incredible that so clever a man should have blundered so appallingly. He had asked himself these questions for the hundredth time when there leaped into his mind an idea so startling that for a moment he could only lie still and let his mind gradually absorb it. Roper’s death seemed the incredible feature of the case, but _was this a feature of the case at all?_ _Had Roper died?_ What if his death was a fake, arranged to free him from the attentions of the police so that he might enjoy without embarrassment the fruits of his crime? French lay trying to recall the details of a paragraph he had read in the paper a year or two previously and wondering how he had failed up to the present to draw a parallel between it and the Starvel Hollow affair. It was the account of the burning of a house in New York. After the fire it was found that a lot of valuable property had disappeared and further search revealed the remains of two human bodies. Two servants were believed to have been in the house at the time, and these bodies were naturally assumed to have been theirs. Afterwards it was proved—French could not remember how—that the two left in the house had planned the whole affair so as to steal the valuables. They had visited a cemetery, robbed a grave of two bodies, conveyed these to the house, set the place on fire and made off with the swag. Had Roper seen this paragraph and determined to copy the Americans? Or had the same idea occurred to him independently?