“You had strict instructions to avoid all luxuries,” I said with indignation, for I was frightened. “You knew that I was living on a salary and that I had to mortgage in order to build. However, I am not complaining. I am willing to pay heavily for the casement, for it certainly is a shipshape affair.”

“That’s better talk,” said the assistant. “Now, as a matter of fact, you’ve paid already. The contract for magic casements is to the effect that the article is paid for by use. It runs, ‘For so much value received in vision, equivalent price in use, thus and so.’ I knew you could pay cash for that window.”

To pay by using! Now, Margaret, did you ever hear of anything like that! “How uncommon,” I protested. “How absurd!”

“Nobody would suppose that you had a look into Utopia lately,” he sighed.

“We’re not in Utopia,” I argued.

“Are you so sure?” he asked; and looking at him, I found I wasn’t.

“People are dull,” he complained ruefully. “Of course they are in Utopia the minute they believe themselves there.” As he talked, I was noticing that ruffled hair of his and those queer, triangular, merry eyebrows.

“Does your firm approve your way of doing business?” I asked.

“They have nothing to do with magic casements. Those are a little specialty of my own which I put in now and then for a suitable client like yourself.”

“Who are you, anyway?” I cried; and with a flourish he handed me a card engraved in the latest style. Mr. Robert Goodfellow was the name it bore. The wind from the train window blew the hair from his ears.