“What do you say to that?” asked the Chief.

Dormer had a good deal to say, but kept it down. “I can’t believe it, sir. I know the billet. I remember Miss Vanderlynden. She’s as strong as a man and much more determined than most. It’s a mistake of some sort!”

“Pretty circumstantial mistake, isn’t it? Look at this covering letter received with it.”

He held out a memorandum headed: “Grand Quartier General,” in French, to the effect that one desired it might be given appropriate attention. And another from a department of English General Head-quarters with “Passed to you, please.”

“The French have had their knife into us for some time. This’ll be a nice case for them to take up. We must make an arrest at once. Sergeant!”

That Sergeant was a famous London Architect. He came to the door of the ante-room in which he worked.

“In what Corps Area is Hondebecq?”

The Sergeant spotted it in a moment, on the big map pinned up on the wall.

“Very well, wire them to take this up, and make an arrest.”

“There is just one point I should like to put, sir!”