The Orange-Yellow Diamond by J.S. Fletcher

One of the three companions who stood curiously gazing at the new witness as he came into full view of the court had seen him before. Lauriston, who, during his residence in Paddington, had wandered a good deal about Maida Vale and St. John's Wood, instantly recognized Dr. Mirandolet as a man whom he had often met or passed in those excursions and about whom he had just as often wondered. He was a notable and somewhat queer figure -- a tall, spare man, of striking presence and distinctive personality -- the sort of man who would inevitably attract attention wherever he was, and at whom people would turn to look in the most crowded street. His aquiline features, almost cadaverous complexion, and flashing, deep-set eyes, were framed in a mass of raven-black hair which fell in masses over a loosely fitting, unstarched collar, kept in its place by a voluminous black silk cravat; his thin figure, all the sparer in appearance because of his broad shoulders and big head, was wrapped from head to foot in a mighty cloak, raven-black as his hair, from the neck of which depended a hood-like cape. Not a man in that court would have taken Dr. Mirandolet for anything but a foreigner, and for a foreigner who knew next to nothing of England and the English, and John Purdie, whose interest was now thoroughly aroused, was surprised as he heard the witness's answer to the necessary preliminary questions.

Nicholas Mirandolet -- British subject -- born in Malta -- educated in England -- a licentiate of the Royal College of Surgeons and of the Royal College of Physicians -- in private practice at Portsdown Road, Maida Vale, for the last ten years.