"The front windows were open, sir. Sir Arthur never had the side window open when he sat here. I thought it best to shut them when we locked the room up, in case of anyone trying to come in for any purpose."
"Had you any reason to think that someone might wish to come into the room?"
The butler hesitated. "Not then, sir — in a manner of speaking."
"But later you had?"
"I don't know that I would go so far as to say that, sir, but it did seem to me that Mr. Halliday was not best pleased."
"What made you think that?" asked Harding.
"Well, sir, I don't know that I could give any definate reason. Mr. Halliday seemed anxious to get the key in his own hands, to my way of thinking."
Harding looked consideringly at him for a moment "Mr. Guest, however, agreed with you that the room should be shut up?"
"Oh yes, sir. It was Mr. Guest who suggested the key should be put into Dr Raymond's charge."
"And eventually you all left the room together?"