I saw that I should have to humour her.

"If it's a Jerusalem artichoke you mean, yes," I said; "the other sort, no. J. Arthur Choke I love."

"Right-o. Sorry for interrupting." And then as she went to the door, "You did hear Jumbo this time, didn't you?"

"I believe that's the only reason you came in for."

"Well, one of them."

"Are you coming in again?"

"Don't know," she smiled. "Depends if I can think of an excuse."

"Right," I said. "In that case——"

There was nothing else for it; I took up my pen and began to work.

But I have a suggestion to make to Celia. At present, although Jumbo is really mine, she is having all the fun with him. And as long as Jumbo is on the outside of the door there can never rise an occasion when I should want to use him. My idea is that I should unscrew Jumbo and put him on the inside of the door, so that I can knock when I come out.