Wallion then took up the wooden doll and put it in his pocket. "I am going to take that with me now, and for the present you mustn't say anything about it. The Chief Detective will probably call here, so mind you don't forget that you are on the sick-list. You are at liberty to say all you know, but nothing in any way relating to 'E.R.' Mrs. Toby has had her instructions."

"All right, but how is...?"

"The little lady? She is very feverish from her wound, but you need not be alarmed; the doctor will be here before long, ostensibly to see you ... hallo! Who's coming now...?"

There was a ring at the door and Superintendent Aspeland was admitted. He was accompanied by Detective Ferlin, and both men looked excited.

"Gone, without leaving the slightest trace behind him," Aspeland said, turning to Wallion. "Since the miscreant got out of the house he has disappeared from human ken like a 'U' boat."

"And is as great a danger," added Ferlin. "In my opinion that man is the greatest menace we have ever come across. But we must not forget the girl; she must have something to tell."

Detective Ferlin was short of stature, grave and alert, somewhat excitable and fidgetty, inclined to be a little bumptious, but clever and shrewd beyond the average. Aspeland tugged at his moustache and looked at his colleague sideways.

"Ferlin," he said, in an amicable tone, "I posted you and Rankel at the door, but both the assassin and the girl seem to have neglected to make your acquaintance. Have you any advice to give?"

Ferlin turned crimson to the roots of his hair, gazed for a moment at Tom and said: "Mr. Murner, will you give me an answer on one point?"

Tom grew as rigid as if ice were sliding down his spine, but he replied calmly: "Yes, of course, what is it you want to know?"