Now passed a guard in the romantic cloak of a brigand in comic opera and a peaked cap like that of an alguacil. A group of telegraph boys in blue stood round a painter, who was making a sketch—notwithstanding half-frozen fingers. Here and there, in baggy corduroys, tight jackets, and wide-brimmed hats, strolled students who might have stepped from the page of Murger's immortal romance. But the students now are uneasy with the fear of ridicule, and more often they walk in bowler hats and the neat coats of the boulevardier.

Dr Porhoët spoke English fluently, with scarcely a trace of foreign accent, but with an elaboration which suggested that he had learned the language as much from study of the English classics as from conversation.

'And how is Miss Dauncey?' he asked, turning to his friend.

Arthur Burdon smiled.

'Oh, I expect she's all right. I've not seen her today, but I'm going to tea at the studio this afternoon, and we want you to dine with us at the Chien Noir.'

'I shall be much pleased. But do you not wish to be by yourselves?'

'She met me at the station yesterday, and we dined together. We talked steadily from half past six till midnight.'

'Or, rather, she talked and you listened with the delighted attention of a happy lover.'

Arthur Burdon had just arrived in Paris. He was a surgeon on the staff of St Luke's, and had come ostensibly to study the methods of the French operators; but his real object was certainly to see Margaret Dauncey. He was furnished with introductions from London surgeons of repute, and had already spent a morning at the Hôtel Dieu, where the operator, warned that his visitor was a bold and skilful surgeon, whose reputation in England was already considerable, had sought to dazzle him by feats that savoured almost of legerdemain. Though the hint of charlatanry in the Frenchman's methods had not escaped Arthur Burdon's shrewd eyes, the audacious sureness of his hand had excited his enthusiasm. During luncheon he talked of nothing else, and Dr Porhoët, drawing upon his memory, recounted the more extraordinary operations that he had witnessed in Egypt.

He had known Arthur Burdon ever since he was born, and indeed had missed being present at his birth only because the Khedive Ismaïl had summoned him unexpectedly to Cairo. But the Levantine merchant who was Arthur's father had been his most intimate friend, and it was with singular pleasure that Dr Porhoët saw the young man, on his advice, enter his own profession and achieve a distinction which himself had never won.

Though too much interested in the characters of the persons whom chance threw in his path to have much ambition on his own behalf, it pleased him to see it in others. He observed with satisfaction the pride which Arthur took in his calling and the determination, backed by his confidence and talent, to become a master of his art. Dr Porhoët knew that a diversity of interests, though it adds charm to a man's personality, tends to weaken him. To excel one's fellows it is needful to be circumscribed. He did not regret, therefore, that Arthur in many ways was narrow. Letters and the arts meant little to him. Nor would he trouble himself with the graceful trivialities which make a man a good talker. In mixed company he was content to listen silently to others, and only something very definite to say could tempt him to join in the general conversation. He worked very hard, operating, dissecting, or lecturing at his hospital, and took pains to read every word, not only in English, but in French and German, which was published concerning his profession. Whenever he could snatch a free day he spent it on the golf-links of Sunningdale, for he was an eager and a fine player.

But at the operating-table Arthur was different. He was no longer the awkward man of social intercourse, who was sufficiently conscious of his limitations not to talk of what he did not understand, and sincere enough not to express admiration for what he did not like. Then, on the other hand, a singular exhilaration filled him; he was conscious of his power, and he rejoiced in it. No unforeseen accident was able to confuse him. He seemed to have a positive instinct for operating, and his hand and his brain worked in a manner that appeared almost automatic. He never hesitated, and he had no fear of failure. His success had been no less than his courage, and it was plain that soon his reputation with the public would equal that which he had already won with the profession.

Dr Porhoët had been making listless patterns with his stick upon the gravel, and now, with that charming smile of his, turned to Arthur.

'I never cease to be astonished at the unexpectedness of human nature,' he remarked. 'It is really very surprising that a man like you should fall so deeply in love with a girl like Margaret Dauncey.'

Arthur made no reply, and Dr Porhoët, fearing that his words might offend, hastened to explain.

'You know as well as I do that I think her a very charming young person. She has beauty and grace and sympathy. But your characters are more different than chalk and cheese. Notwithstanding your birth in the East and your boyhood spent amid the very scenes of the Thousand and One Nights, you are the most matter-of-fact creature I have ever come across.'

'I see no harm in your saying insular,' smiled Arthur. 'I confess that I have no imagination and no sense of humour. I am a plain, practical man, but I can see to the end of my nose with extreme clearness. Fortunately it is rather a long one.'

'One of my cherished ideas is that it is impossible to love without imagination.'

Again Arthur Burdon made no reply, but a curious look came into his eyes as he gazed in front of him. It was the look which might fill the passionate eyes of a mystic when he saw in ecstasy the Divine Lady of his constant prayers.

'But Miss Dauncey has none of that narrowness of outlook which, if you forgive my saying so, is perhaps the secret of your strength. She has a delightful enthusiasm for every form of art. Beauty really means as much to her as bread and butter to the more soberly-minded. And she takes a passionate interest in the variety of life.'

'It is right that Margaret should care for beauty, since there is beauty in every inch of her,' answered Arthur.

He was too reticent to proceed to any analysis of his feelings; but he knew that he had cared for her first on account of the physical perfection which contrasted so astonishingly with the countless deformities in the study of which his life was spent. But one phrase escaped him almost against his will.

'The first time I saw her I felt as though a new world had opened to my ken.'

The divine music of Keats's lines rang through Arthur's remark, and to the Frenchman's mind gave his passion a romantic note that foreboded future tragedy. He sought to dispel the cloud which his fancy had cast upon the most satisfactory of love affairs.

'You are very lucky, my friend. Miss Margaret admires you as much as you adore her. She is never tired of listening to my prosy stories of your childhood in Alexandria, and I'm quite sure that she will make you the most admirable of wives.'

'You can't be more sure than I am,' laughed Arthur.

He looked upon himself as a happy man. He loved Margaret with all his heart, and he was confident in her great affection for him. It was impossible that anything should arise to disturb the pleasant life which they had planned together. His love cast a glamour upon his work, and his work, by contrast, made love the more entrancing.

'We're going to fix the date of our