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.

"As you see, Monsieur."

"Then I'll take one of them," said I.

Miss Falconer was looking at me in a puzzled fashion. As for the duke,
his brows drew together; his figure straightened; the cool glint grew in
his eyes.

"Monsieur," he stated somewhat icily, "such things as these are not
souvenirs. When they leave my possession they will go to the supreme
command."

"Certainly," I agreed, unruffled. "That will do admirably for the first
package; but about the second--no doubt Miss Falconer told you that
we have German guests downstairs? Perhaps she forgot to mention the
leader's name, though. It is Franz von Blenheim. And I don't care to
have him break down the door and burst in on us, on her specially; I
would rather, all things considered, interview him in the hall."

The Firefly's face had altered at the name of the secret agent; he
was now regarding me with intentness, but without a frown. As for Miss
Falconer, the trouble in her eyes was growing. I should have to be
careful. Accordingly I summoned a debonair manner as I went on.

"If you'll allow me," I said, "I will take the papers down to him. He
won't know that they are copies; he will snatch at them, glad of the
chance. And since he is in a hurry, he probably won't stop to parley. He
will simply be off at top speed, and leave us safe.

"Of course, that is the one unpleasant feature of the affair, his
going." At this point I glanced in a casual manner at the Duke of
Raincy-la-Tour. "It seems a pity to let him walk off scot-free, to plan
more trouble for France; but that is past praying for. I could hardly
hope to stop him, except by a miracle. If there is one, I'll be on
hand."

Would the duke guess the hope with which I was going downstairs, I
wondered. I thought he did, for his eyes flashed slightly, and he
stirred a little on the chest.

"Such a miracle, Monsieur," he remarked, "would serve France greatly. As
a good son of the Church, I will pray for it with all my heart!"

"I hop