on leaving their room they were at once conscious of a smell of powder, I remarked that the point was an extremely important one?”
“Yes, sir; but I confess I did not quite follow you.”
“It suggested that at the time of the firing, the window as well as the door of the room had been open. Otherwise the fumes of powder could not have been blown so rapidly through the house. A draught in the room was necessary for that. Both door and window were only open for a very short time, however.”
“How do you prove that?”
“Because the candle was not guttered.”
“Capital!” cried the inspector. “Capital!”
“Feeling sure that the window had been open at the time of the tragedy, I conceived that there might have been a third person in the affair, who stood outside this opening and fired through it. Any shot directed at this person might hit the sash. I looked, and there, sure enough, was the bullet mark!”
“But how came the window to be shut and fastened?”
“The woman’s first instinct would be to shut and fasten the window. But, halloa! What is this?”
It was a lady’s handbag which stood upon the study table—a trim little handbag of crocodile-skin and silver. Holmes opened it and turned the contents out. There were twenty fifty-pound notes of the Bank of England, held together by an india-rubber band—nothing else.
“This must be preserved, for it will figure in the trial,” said Holmes, as he handed the bag with its contents to the inspector. “It is now necessary