Dr. Denbigh was a student, and given to working late. He answered the door himself, in dressing-gown and slippers, and on the Squire's urgent entreaty consented to start at once, or as soon as post-horses could be got ready. He could return in the morning early enough to see his gratis patients, who came to him in flocks. He was known in all the vilest slums and alleys of London, and was the beloved of the London poor.

It was a three hours' journey, with good horses and short stages, to Fairmile Court; and it was the dead of the night when Bosworth and the physician stole softly into the children's sick-chamber, where nurse Bridget was dozing in her armchair, while Mrs. Layburne sat bolt upright beside Rena's bed, watching the child's troubled slumbers.

"What an atmosphere!" cried Dr. Denbigh. "Draw back those curtains, madam, if you please; open yonder window."

"The doctor forbade us to open door or window."

"That is a fine old-fashioned style of treatment, madam, which has helped to people our churchyards. You needn't be afraid of the night air. It is a fine dry night, and as wholesome as the day. Pray let those poor children have some fresh air."

Barbara Layburne obeyed, deeming herself the unwilling accessory to a murder. Bridget had rubbed her eyes, and was staring wonderingly at the strange doctor. The village nurse was snoring rhythmically in an adjoining room.

Dr. Denbigh seated himself between the two little beds, and examined the sufferers, each in turn, with ineffable gentleness, with thoughtful patient care.

"The symptoms are exactly the same," he said gravely, "but they are severest here."

It was on Rena that his hand rested. The Squire groaned aloud.

"Shall I lose her?" he asked. "She is my all."