When I came to this corner, I saw the lamp-post. At that moment, a man appeared on the top of the wall, caught hold of the post and let himself down by it. There was no room for doubt; the man leaving the Yard in this way had just been with my uncle. What had passed between them?
The distance that separated us was too great to allow me to distinguish his features. As soon as he saw me, he turned down the brim of his soft hat and drew the two ends of a muffler over his face. A loose-fitting grey rain-coat concealed his figure. I received the impression, however, that he was shorter and thinner than the man with the eye-glasses.
"Stop!" I cried, as he moved away.
My summons only hastened his flight; and it was in vain that I darted forward in his pursuit, shouting insults at him and threatening him with a revolver which I did not possess. He covered the whole width of the fields, leapt over a hedge and reached the skirt of the woods.
I was certainly younger than he, for I soon perceived that the interval between us was decreasing; and I should have caught him up, if we had been running across open country. But I lost sight of him at the first clump of trees; and I was nearly abandoning the attempt to come up with him, when, suddenly, he retraced his steps and seemed to be looking for something.
I made a rush for him. He did not appear to be perturbed by my approach. He merely drew a revolver and pointed it at me, without saying a word or ceasing his investigations.
I now saw what his object was. Something lay gleaming in the grass. It was a piece of metal which, I soon perceived, was none other than the steel plate on which Noël Dorgeroux had engraved the chemical formula.
We both flung ourselves on the ground at the same time. I was the first to seize the strip of steel. But a hand gripped mine; and on this hand, which was half-covered by the sleeve of the rain-coat, there was blood.
I was startled and suffered from a moment's faintness. The vision of Noël Dorgeroux dying, nay, dead, had flashed upon me so suddenly that the man succeeded in overpowering me and stretching me underneath him.
As we thus lay one against the other, with our faces almost touching, I saw only part of his, the lower half being hidden by the muffler. But his two eyes glared at me, under the shadow of his hat; and we stared at each other in silence, while our hands continued to grapple.