I stood around while we were getting ready to start back to the cars, and one of the officers was with me.

"How often do you get a shell right inside the pit here?" I asked him. "A fair hit, I mean?"

"Oh, I don't know!" he said, slowly. He looked around. "You know that hole you were singing in just now?"

I nodded. I had guessed that it had been made by a shell.

"Well, that's the result of a Boche shell," he said. "If you'd come yesterday we'd have had to find another place for your concert!"

"Oh—is that so!" I said.

"Aye," he said, and grinned. "We didn't tell you before, Harry, because we didn't want you to feel nervous, or anything like that, while you were singing. But it was obliging of Fritz—now wasn't it? Think of having him take all the trouble to dig out a fine theater for us that way!"

"It was obliging of him, to be sure," I said, rather dryly.

"That's what we said," said the officer. "Why, as soon as I saw the hole that shell had made, I said to Campbell: 'By Jove—there's the very place for Harry Lauder's concert to-morrow!' And he agreed with me!"

Now it was time for handshaking and good-bys. I said farewell all around, and wished good luck to that brave battery, so cunningly hidden away in its pit. There was a great deal of cheery shouting and waving of hands as we went off. And in two minutes the battery was out of sight—even though we knew exactly where it was!