The two men entered the hall, and the Professor led the way into his private sanctum. He motioned his companion into an arm-chair.

"I trust that you have been successful, O'Brien," said he. "I should be loath to exercise any undue pressure upon my sister Ada; but I have given her to understand that there is no one whom I should prefer for a brother-in-law to my most brilliant scholar, the author of 'Some Remarks upon the Bile-Pigments, with special reference to Urobilin.'"

"You are very kind, Professor Grey--you have always been very kind,"

said the other. "I approached Miss Grey upon the subject; she did not say No."

"She said Yes, then?"

"No; she proposed to leave the matter open until my return from Edinburgh. I go to-day, as you know, and I hope to commence my research to-morrow."

"On the comparative anatomy of the vermiform appendix, by James M'Murdo O'Brien," said the Professor sonorously. "It is a glorious subject--a subject which lies at the very root of evolutionary philosophy."

"Ah, she is the dearest girl," cried O'Brien, with a sudden little spurt of Celtic enthusiasm--"she is the soul of truth and of honour."

"The vermiform appendix----" began the Professor.

"She is an angel from heaven," interrupted the other. "I fear that it is my advocacy of scientific freedom in religious thought which stands in my way with her."

"You must not truckle upon that point. You must be true to your convictions; let there be no compromise there."

"My reason is true to agnosticism, and yet I am conscious of a void--a vacuum. I had feelings at the old church at home between the scent of the incense and the roll of the organ, such as I have never experienced in the laboratory or the lecture-room."

"Sensuous--purely sensuous," said the Professor, rubbing his chin.

"Vague hereditary tendencies stirred into life by the stimulation of the nasal and auditory nerves."

"Maybe so, maybe so," the younger man answered thoughtfully. "But this was not what I wished to speak to you about. Before I enter your family, your sister and you have a claim to know all that I can tell you about my career. Of my worldly prospects I have already spoken to you. There is only one point which I have omitted to mention. I am a widower."

The Professor raised his eyebrows.

"This is news indeed," said he.

"I married shortly after my arrival in Australia. Miss Thurston was her name. I met her in society. It was a most unhappy match."

Some painful emotion possessed him. His quick, expressive features quivered, and his white hands tightened upon the arms of the chair. The Professor turned away towards the window.

"You are the best judge," he remarked; "but I should not think that it was necessary to go into details."

"You have a right to know everything--you and Miss Grey. It is not a matter on which I can well speak to her direct. Poor Jinny was the best of women, but she was open to flattery, and liable to be misled by designing persons. She was untrue to me, Grey. It is a hard thing to say of the dead, but she was untrue to me. She fled to Auckland with a man whom she had known before her marriage. The brig which carried them foundered, and not a soul was saved."

"This is very painful, O'Brien," said the Professor, with a deprecatory motion of his hand. "I cannot see, however, how it affects your relation to my sister."

"I have eased my conscience," said O'Brien, rising from his chair; "I have told you all that there is to tell. I should not like the story to reach you through any lips but my own."

"You are right, O'Brien. Your action has been most honourable and considerate. But you are not to blame in the matter, save that perhaps you showed a little precipitancy in choosing a life-partner without due care and inquiry."

O'Brien drew his hand across his eyes.

"Poor girl!" he cried. "G.o.d help me, I love her still. But I must go."

"You will lunch with us?"

"No, Professor; I have my packing still to do. I have already bade Miss Grey adieu. In two months I shall see you again."

"You will probably find me a married man."

"Married!"

"Yes, I have been thinking of it."

"My dear Professor, let me congratulate you with all my heart. I had no idea. Who is the lady?"

"Mrs. O'James is her name--a widow of the same nationality as yourself.

But to return to matters of importance, I should be very happy to see the proofs of your paper upon the vermiform appendix. I may be able to furnish you with material for a footnote or two."

"Your a.s.sistance will be invaluable to me," said O'Brien, with enthusiasm, and the two men parted in the hall. The Professor walked back into the dining-room, where his sister was already seated at the luncheon-table.

"I shall be married at the registrar's," he remarked; "I should strongly recommend you to do the same."

Professor Ainslie Grey was as good as his word. A fortnight's cessation of his cla.s.ses gave him an opportunity which was too good to let pa.s.s.

Mrs. O'James was an orphan, without relations and almost without friends in the country. There was no obstacle in the way of a speedy wedding.

They were married, accordingly, in the quietest manner possible, and went off to Cambridge together, where the Professor and his charming wife were present at several academic observances, and varied the routine of their honeymoon by incursions into biological laboratories and medical libraries. Scientific friends were loud in their congratulations, not only upon Mrs. Grey's beauty, but upon the unusual quickness and intelligence she displayed in discussing physiological questions. The Professor was himself astonished at the accuracy of her information. "You have a remarkable range of knowledge for a woman, Jeannette," he remarked upon more than one occasion. He was even prepared to admit that her cerebrum might be of the normal weight.

One foggy, drizzling morning they returned to Birchespool, for the next day would reopen the session, and Professor Ainslie Grey prided himself upon having never once in his life failed to appear in his lecture-room at the very stroke of the hour. Miss Ada Grey welcomed them with a constrained cordiality, handed over the keys of office to the new mistress. Mrs. Grey pressed her warmly to remain, but she explained that she had already accepted an invitation which would engage her for some months. The same evening she departed for the south of England.

A couple of days later the maid carried a card just after breakfast into the library where the Professor sat revising his morning lecture. It announced the rearrival of Dr. James M'Murdo O'Brien. Their meeting was effusively genial on the part of the younger man, and coldly precise on that of his former teacher.

"You see there have been changes," said the Professor.

"So I heard. Miss Grey told me in her letters, and I read the notice in the _British Medical Journal_. So it's really married you are. How quickly and quietly you have managed it all!"

"I am const.i.tutionally averse to anything in the nature of show or ceremony. My wife is a sensible woman--I may even go the length of saying that, for a woman, she is abnormally sensible. She quite agreed with me in the course which I have adopted."

"And your research on Vallisneria?"

"This matrimonial incident has interrupted it, but I have resumed my cla.s.ses, and we shall soon be quite in harness again."

"I must see Miss Grey before I leave England. We have corresponded, and I think that all will be well. She must come out with me. I don't think I could go without her."

The Professor shook his head.

"Your nature is not so weak as you pretend," he said. "Questions of this sort are, after all, quite subordinate to the great duties of life."

O'Brien smiled.

"You would have me take out my Celtic soul and put in a Saxon one," he said. "Either my brain is too small or my heart is too big. But when may I call and pay my respects to Mrs. Grey? Will she be at home this afternoon?"

"She is at home now. Come into the morning-room. She will be glad to make your acquaintance."

They walked across the linoleum-paved hall. The Professor opened the door of the room, and walked in, followed by his friend. Mrs. Grey was sitting in a basket-chair by the window, light and fairy-like in a loose-flowing, pink morning gown. Seeing a visitor, she rose and swept towards them. The Professor heard a dull thud behind him. O'Brien had fallen back into a chair, with his hand pressed tight to his side.