“What do you think this talk about ‘thrones’ and ‘mad princes’ means?”

“That is for us to find out. And unless I am more of a fool than I think, it will very shortly develop. In the meantime you are anxious about the answers to your cables, aren’t you? Since they are addressed to Grey, you can’t accept them, that’s clear. But you shall know what is in them just the same. I’ll undertake that for you.”

“But——”

“Never mind, lad; leave it to me.”

“And the box with proofs that Schlippenbach spoke of? That is important.”

“To be sure. It is at the Gare du Nord in his name or yours, eh? I’ll get it for you. But the key?”

Suddenly Grey remembered.

“There is a key in a wallet I found. Possibly that is it.”

“Possibly.”

And the thought of the wallet reminded him that a fifty-franc note and some change was all the money he had in his possession.