"I believe we have known each other twenty years, Kath."

She nodded assent.

"Then I think the least you can do for me, if you can't love me, is to let me be your best friend," he said. "We all know that Ronnie is so taken up with Gwendolen that he has no thought for any one else just now. But I—I have no wife. And my mind is at leisure, and my brain too—such as it is—and always at your service, as you know."

"If only I had a profession," Katharine said. "That has been my mistake all along, Willy. Every one ought to have a calling—no matter what it is; and it won't fail them in moments of poverty and trouble and—and desolation."

"So you are feeling desolate," he said sadly, "I knew you would when you came back and realised that Ronnie was married. I dreaded it for you."

"It is not only that," she answered, "though I have felt that bitterly. But——"

"Well?" he said, turning to her.

"I should like to tell you, Willy," she replied tremblingly—"but it is not fair on you."

"I know what it is," he said quite quietly, but with a sudden illumination on his face. "You have fallen in love with that stranger, Professor Thornton, Kath."