“Exactly. And it looks out on an angle of the courtyard so as to be partly invisible. The man might have effected his entrance there, left traces as he passed through the bedroom, and finally, finding the door open, have escaped that way.”
Holmes shook his head impatiently.
“Let us be practical,” said he. “I understand you to say that there are three students who use this stair, and are in the habit of passing your door?”
“Yes, there are.”
“And they are all in for this examination?”
“Yes.”
“Have you any reason to suspect any one of them more than the others?”
Soames hesitated.
“It is a very delicate question,” said he. “One hardly likes to throw suspicion where there are no proofs.”
“Let us hear the suspicions. I will look after the