hour he had sounded and sifted the case to the uttermost, and descended with the husband once more to the drawing-room. In front of the fireplace were standing two gentlemen, the one a very typical, clean-shaven, general practitioner, the other a striking-looking man of middle age, with pale blue eyes and a long red beard.

"Hullo, Mason, you've come at last!"

"Yes, Sir John, and I have brought, as I promised, Dr. Wilkinson with me."

"Dr. Wilkinson! Why, this is he."

Dr. Mason stared in astonishment. "I have never seen the gentleman before!" he cried.

"Nevertheless I am Dr. Wilkinson--Dr. Horace Wilkinson, of 114 Canal View."

"Good gracious, Sir John!" cried Dr. Mason.

"Did you think that in a case of such importance I should call in a junior local practitioner! This is Dr. Adam Wilkinson, lecturer on pulmonary diseases at Regent's College, London, physician upon the staff of the St. Swithin's Hospital, and author of a dozen works upon the subject. He happened to be in Sutton upon a visit, and I thought I would utilise his presence to have a first-rate opinion upon Lady Millbank."

"Thank you," said Sir John, dryly. "But I fear my wife is rather tired now, for she has