The laboratory coat was apparently left on its peg every night after work was done. It was therefore accessible to anyone in the Croft-Thornton, after Silverdale had gone for the day.
Silverdale again has no alibi;
Flamborough has arrested Silverdale. Perhaps it’s a sound move, though not from his point of view. I hope it will bring things to a crisis, and that we may be able to fish something out of the disturbed waters.
One point is already established: Silverdale had nothing to do with this raid on Miss Deepcar’s house.
The raider must have been a man. Miss Deepcar herself could not have impersonated me well enough to deceive her own maid. Miss Hailsham has a girl’s figure and could hardly have posed as myself. The shape of her face, and especially her mouth, would make that impossible. No other woman that we know about is sufficiently mixed up in the business to make it worth while to run a risk like that.
What was he after? Letters, evidently. And again this limits the circle, since the raider must be someone who has knowledge of the relations between Silverdale and Miss Deepcar.
Miss Deepcar’s evidence gives Silverdale a complete alibi for the time of the bungalow murder. On the other hand, they may both have been mixed up in it; in which case her evidence carries no weight. But the Heatherfield affair seems the key to the whole business, and Silverdale had no motive for that murder, even assuming he wanted to destroy the draft of his wife’s new will. On the face of it, Miss Deepcar’s evidence seems sound and clears Silverdale.
Curious how people will never let well alone. If this fellow "Justice" had been content to stay out of the case, we’d have had a much stiffer job. Now at last he’s let us see what side he’s on—anti-Silverdale definitely.
The photographs are obvious fakes if one examines them carefully. Their only importance is as a guide to the identity of "Justice."
They limit the circle still further, since the production of them implies the use of a good microphotographic camera; and the Croft-Thornton Institute has more than one of these.
Points which seem to tell against Markfield:
(1) He was intimate with Mrs. Silverdale shortly after she came here.
(2) He was near Heatherfield on the night of the murder.
(3) He knew the maid was alone in Heatherfield except for her sick companion.
(4) He could easily have obtained possession of Silverdale’s cigarette-holder.
(5) Owing to his housekeeper’s absence, he could move about freely with no check on the times when he left his house or returned to it.
(6) He was out at the Research Station on the Lizardbridge Road early in the evening on the night of the bungalow affair.
(7) The evidence he gave us, for all his pretence of reluctance, was directed against Silverdale.
(8) He was well acquainted with all the arrangements of the Croft-Thornton Institute.
(9) Owing to his earlier association with Mrs. Silverdale, he had access to specimens of her writing.
(10) His car’s number, GX. 9074, was known to Whalley, who made inquiries about it with reference to the night of the murders.
(11) He knew that Silverdale had a banjo.
(12) He had access to Silverdale’s laboratory coat.
(13) He knew of the relations between Silverdale and Miss Deepcar.
(14) He knew that Miss Deepcar would be out of town on the night when the raid was made on her house.
(15) He was a good amateur actor.
(16) He had access to a microphotographic camera.