“Well, well,” Reggie sighed. “Poor kiddies! And now you must send for the police.”

“I have given instructions, Dr. Fortune,” said the matron with dignity.

“And I think you ought to keep Edith Baker from talking about it.” Reggie opened the door.

“Edith will not talk,” said the matron coldly. “She is a very reserved creature.”

“Poor thing. But I’m afraid some of our visitors will. And they had better not, you know.” At last he got rid of the lady and turned the key in the lock and stood looking at it. “Yes, quite natural, but very convenient,” said he, and turned away from it and contemplated a big easy chair. The loose cushion on the seat showed that somebody had been sitting in it, a fact not in itself remarkable. But there was a tiny smear of blood on the arm still wet. He picked up the cushion. On the under side was a larger smear of blood. Mr. Fortune’s brow contracted. “The unknown murderer cuts her throat—comes over here—makes a mess on the chair—turns the cushion over—and sits down—to watch the woman die. This is rather diabolical.” He began to wander round the room. It offered him no other signs but some drops of blood on the hearthrug and the hearth. He knelt down and peered into the fire, and with the tongs drew from it a thin piece of metal. It was a surgical knife. He looked at the dead woman. “From your hospital equipment, Dr. Hall. And Edith Baker is a nurse. And Edith Baker had ‘a girlish passion’ for you. I wonder.”

Some one was trying the door. He unlocked it, to find an inspector of police. “I am Reginald Fortune,” he explained. “Here’s your case.”

“I’ve heard of you, sir,” said the inspector reverently. “Bad business, isn’t it? I’m sure it’s very lucky you were here.”

“I wonder,” Reggie murmured.

“Could it be suicide, sir?”

Reggie shook his head. “I wish it could. Not a nice murder. Not at all a nice murder. By the way, there’s the knife. I picked it out of the fire.”