O'Brien stretched out his hand and took that of the woman. They stood together with the sunshine on their faces. The Professor paused at the casement with his hands behind his back and his long black shadow fell between them.

"You have come to a wise decision," said he. "Go back to Australia together, and let what has passed be blotted out of your lives."

"But you—you——" stammered O'Brien.

The Professor waved his hand.

"Never trouble about me," he said.

The woman gave a gasping cry.

"What can I do or say?" she wailed. "How could I have foreseen this? I thought my old life was dead. But it has come back again, with all its hopes and its desires. What can I say to you, Ainslie? I have brought shame and disgrace upon a worthy man. I have blasted your life. How you must hate and loathe me! I wish to God that I had never been born!"

"I neither hate nor loathe you, Jeannette," said the Professor quietly. "You are wrong in regretting your birth, for you have a worthy mission before you in aiding the life-work of a man who has shown himself capable of the highest order of scientific research. I cannot with justice blame you personally for what has occurred. How far the individual monad is to be held responsible for hereditary and engrained tendencies, is a question upon which science has not yet said her last word."

He stood with his finger-tips touching, and his body inclined as one who is gravely expounding a difficult and impersonal subject. O'Brien had stepped forward to say something, but the other's attitude and manner froze the words upon his lips. Condolence or sympathy would be an impertinence to one who could so easily merge his private griefs in broad questions of abstract philosophy.

"It is needless to prolong the situation," the Professor continued, in the same measured tones. "My brougham stands at the door. I beg that you will use it as your own. Perhaps it would be as well that you should leave the town without unnecessary delay. Your things, Jeannette, shall be forwarded."