The shrouding mist had aided him to lose those pursuing vultures. The last of them fell off, baffled,—or afraid to go deeper into France. Now he emerged again into the clear air and the starlight. The land beneath him was a scudding blur, with a dark-green mass in its center, the forest of La Fay.

And then, suddenly, he knew he must land if he were not to lose consciousness and hurtle down blindly; and with set teeth and sweat beading his forehead, he began the descent. At the end his strength failed him. The plane crashed among the trees. “But Saint Denis, who helps all Frenchmen, helped me,”—he smiled—“and I was thrown clear.”

From that thicket where his machine lay hidden it was a mile to Prezelay. He dragged himself over this distance, sometimes on his hands and knees. Soon after dawn Marie-Jeanne, answering a discordant ringing, found a man lying outside the gate and babbling deliriously, her master’s cousin, in a blood-soaked uniform, holding out a bundle of papers, and begging her by the soul of her mother to put them in the castle’s secret hiding-place.

She did it. Then she coaxed the wounded man to the rooms opening from the gallery and tended him day and night through the weeks of fever that ensued. From his ravings she learned that he was in danger and feared pursuers; and with the peasant’s instinct for caution, she had not dared to send for help.

“It was yesterday,” the duke told us, “that my mind came back. I knew then what must be thought of me, what must be said of me, all over France.” He was leaning on the wall now, exhausted and white, but dauntless. “No matter for that—I have the papers. You recall the hiding-place?”

He smiled as he asked the question, and Miss Falconer smiled back at him. Getting to her feet, she ran her fingers across the oak panel over his head, where for centuries a huntsman had been riding across a forest glade and blowing his horn. The bundle of his hunting-knife protruded just a little; and as the girl pressed it, the panel glided silently open, revealing a space, square and dark and cobwebby.

Something was lying there, a thin, wafer-like packet of papers, the papers for which the Firefly of France had shed his blood. She held them up in triumph. But the duke was still smiling faintly. He thrust one hand into his shirt and drew out a duplicate package, which he raised for us to see.

“Behold!” he said. “They are copies. All that I sketched that night near Ranceville, all that I wrote—I did not once, but twice. These I carried openly, to be found if I were captured. But those you hold went hidden in the sole of my boot, which was hollowed for them, so that if I were taken and then escaped, they might go too!”

I had read of such devices, I remembered vaguely. There was a story of a young French captain who had tried the trick in Champagne and succeeded with it, a rather famous exploit. Then I thought of something else. I got up slowly.

“You have two sets of papers?” I repeated.