"It is certainly an extraordinary thing," Gurdon muttered. "I don't think I ever listened to a weirder tale. And did the Dutch woman confess to her crime? This strikes me as being a fitting end to the story. I suppose it came from her lips." "She didn't confess, for the simple reason that she had no mind to confess with," Venner explained. "Of course, certain neighbors knew something of what was going on, but they never knew the whole truth, because, after the appearance of the last finger, Mrs. Van Fort went stark raving mad. She lived for a few days, and at the end of that time her body was found in a waterfall close to her house. That is the story of the Four Finger Mine so far as it goes, though I should not be surprised if we manage to get to the last chapter yet. Now, you are an observant man--did you notice anything peculiar in Fenwick's appearance to-night?" Gurdon shook his head slowly. It was quite evident that he had not noticed anything out of the common in the appearance of the millionaire. Venner proceeded to explain. "Let me tell you this," he said. "When I married my wife, we were within an easy ride of the locality where the Four Finger Mine is situated. Mind you, our marriage was a secret one, and I presume that Fenwick is still in ignorance of it, though, of course, he was fully aware of the fact that I had more than a passing admiration for Vera. I merely mention this by way of accentuating the little point that I am going to make. It is more than probable that, when I stumbled upon Fenwick and the girl who passes for his daughter, he also was in search of the Four Finger Mine. When he came in to-night he, of course, recognised me, though I treated him as an absolute stranger whom I had met for the first time. You will see presently why I treated him in this fashion. I am glad I spoke to him, because I noticed a slight thing that throws a flood of light upon the mystery. Now, did it escape your observation, or did you notice that Fenwick took the box I gave him in his right hand?" "Oh, dear, no," Gurdon said. "A little thing like that would be almost too trivial for the typical detective of the cheap story." "All the same, it is very important," Venner said. "He took the box in his right hand; he made as if to extend his left, then suddenly changed his mind, and put it in his pocket. But he was too late to disguise from me that he had--" "I know," Gurdon shouted. "He had lost all the fingers on his left hand. What an amazing thing! We must get to the bottom of this business at all costs."