There was a pause, and then Dr. Bauerstein drew two keys from his pocket, and handed them to John.
"These are the keys of the two rooms. I have locked them and, in my opinion, they would be better kept locked for the present."
The doctors then departed.
I had been turning over an idea in my head, and I felt that the moment had now come to broach it. Yet I was a little chary of doing so. John, I knew, had a horror of any kind of publicity, and was an easygoing optimist, who preferred never to meet trouble half-way. It might be difficult to convince him of the soundness of my plan. Lawrence, on the other hand, being less conventional, and having more imagination, I felt I might count upon as an ally. There was no doubt that the moment had come for me to take the lead.
"John," I said, "I am going to ask you something."
"Well?"
"You remember my speaking of my friend Poirot? The Belgian who is here? He has been a most famous detective."
"Yes."
"I want you to let me call him in--to investigate this matter."
"What--now? Before the post-mortem?"
"Yes, time is an advantage if--if--there has been foul play."
"Rubbish!" cried Lawrence angrily. "In my opinion the whole thing is a mare's nest of Bauerstein's! Wilkins hadn't an idea of such a thing, until Bauerstein put it into his head. But, like all specialists, Bauerstein's got a bee in his bonnet. Poisons are his hobby, so of course he sees them everywhere."
I confess that I was surprised by Lawrence's attitude. He was so seldom vehement about anything.
John hesitated.
"I can't feel as you do, Lawrence," he said at last. "I'm inclined to give Hastings a free hand, though I should prefer to wait a bit. We don't want any unnecessary scandal."
"No, no," I cried eagerly, "you need have no fear of that. Poirot is discretion itself."
"Very well, then, have it your own way. I leave it in your hands. Though, if it is as we suspect, it seems a clear enough case. God forgive me if I am wronging him!"
I looked at my watch. It was six o'clock. I determined to lose no time.
Five minutes' delay, however, I allowed myself. I spent it in ransacking the library until I discovered a medical book which gave a description of strychnine poisoning.