obtained from the Three Boars by the police. Neither Ralph nor any one else could have worn them that evening, since they were downstairs being cleaned. According to the police theory, Ralph was wearing another pair of the same kind, and I found out that it was true that he had two pairs. Now for my theory to be proved correct it was necessary for the murderer to have worn Ralph’s shoes that evening—in which case Ralph must have been wearing yet a third pair of footwear of some kind. I could hardly suppose that he would bring three pairs of shoes all alike—the third pair of footwear were more likely to be boots. I got your sister to make inquiries on this point—laying some stress on the color, in order—I admit it frankly—to obscure the real reason for my asking.
"You know the result of her investigations. Ralph Paton had had a pair of boots with him. The first question I asked him when he came to my house yesterday morning was what he was wearing on his feet on the fatal night. He replied at once that he had worn boots—he was still wearing them, in fact—having nothing else to put on.
"So we get a step further in our description of the murderer—a person who had the opportunity to take these shoes of Ralph Paton’s from the Three Boars that day."
He paused, and then said, with a slightly raised voice:—
"There is one further point. The murderer must have been a person who had the opportunity to purloin that
[296]
