“It was most unfortunate, sir.  But I have occasionally done the same thing at other times.”

“When did you enter the room?”

“It was about half-past four.  That is Mr. Soames’ tea time.”

“How long did you stay?”

“When I saw that he was absent, I withdrew at once.”

“Did you look at these papers on the table?”

“No, sir—­certainly not.”

“How came you to leave the key in the door?”

“I had the tea-tray in my hand.  I thought I would come back for the key. 
Then I forgot.”

“Has the outer door a spring lock?”

“No, sir.”

“Then it was open all the time?”

“Yes, sir.”

“Anyone in the room could get out?”

“Yes, sir.”

“When Mr. Soames returned and called for you, you were very much disturbed?”

“Yes, sir.  Such a thing has never happened during the many years that I have been here.  I nearly fainted, sir.”

“So I understand.  Where were you when you began to feel bad?”

“Where was I, sir?  Why, here, near the door.”

“That is singular, because you sat down in that chair over yonder near the corner.  Why did you pass these other chairs?”

“I don’t know, sir, it didn’t matter to me where I sat.”

“I really don’t think he knew much about it, Mr. Holmes.  He was looking very bad—­quite ghastly.”

“You stayed here when your master left?”

“Only for a minute or so.  Then I locked the door and went to my room.”

“Whom do you suspect?”

“Oh, I would not venture to say, sir.  I don’t believe there is any gentleman in this university who is capable of profiting by such an action.  No, sir, I’ll not believe it.”

“Thank you, that will do,” said Holmes.  “Oh, one more word.  You have not mentioned to any of the three gentlemen whom you attend that anything is amiss?”

“No, sir—­not a word.”

“You haven’t seen any of them?”

“No, sir.”

“Very good.  Now, Mr. Soames, we will take a walk in the quadrangle, if you please.”

Three yellow squares of light shone above us in the gathering gloom.

“Your three birds are all in their nests,” said Holmes, looking up.  “Halloa!  What’s that?  One of them seems restless enough.”

It was the Indian, whose dark silhouette appeared suddenly upon his blind.  He was pacing swiftly up and down his room.

“I should like to have a peep at each of them,” said Holmes.  “Is it possible?”

“No difficulty in the world,” Soames answered.  “This set of rooms is quite the oldest in the college, and it is not unusual for visitors to go over them.  Come along, and I will personally conduct you.”