“Then it struck me that the texture of the surface looked just a little smoother than the rest, or, at least, in some way different. It might possibly be cement and not stone. I gave it a good blow with my iron bar. There was a decidedly hollow sound, though that might be the result of our being in a well. But there was more. A great flake of cement dropped on to my feet, and I saw marks on the stone underneath. I had tracked the Abbot down, my dear Gregory; even now I think of it with a certain pride. It took but a very few more taps to clear the whole of the cement away, and I saw a slab of stone about two feet square, upon which was engraven a cross. Disappointment again, but only for a moment. It was you, Brown, who reassured me by a casual remark. You said, if I remember right: “‘It’s a funny cross: looks like a lot of eyes.’ “I snatched the lantern out of your hand, and saw with inexpressible pleasure that the cross _was_ composed of seven eyes, four in a vertical line, three horizontal. The last of the scrolls in the window was explained in the way I had anticipated. Here was my ‘stone with the seven eyes’. So far the Abbot’s data had been exact, and, as I thought of this, the anxiety about the ‘guardian’ returned upon me with increased force. Still, I wasn’t going to retreat now. “Without giving myself time to think, I knocked away the cement all round the marked stone, and then gave it a prise on the right side with my crowbar. It moved at once, and I saw that it was but a thin light slab, such as I could easily lift out myself, and that it stopped the entrance to a cavity. I did lift it out unbroken, and set it on the step, for it might be very important to us to be able to replace it. Then I waited for several minutes on the step just above. I don’t know why, but I think to see if any dreadful thing would rush out. Nothing happened. Next I lit a candle, and very cautiously I placed it inside the cavity, with some idea of seeing whether there were foul air, and of getting a glimpse of what was inside. There _was_ some foulness of air which nearly extinguished the flame, but in no long time it burned quite steadily. The hole went some little way back, and also on the right and left of the entrance, and I could see some rounded light-coloured objects within which might be bags. There was no use in waiting. I faced the cavity, and looked in. There was nothing immediately in the front of the hole. I put my arm in and felt to the right, very gingerly…. “Just give me a glass of cognac, Brown. I’ll go on in a moment, Gregory….