“Oh,” said the Inspector, raising his eyebrows, “I see. You were here to make investigations?”

“Yes.”

“And these occurrences, will you tell me what they were?”

“Simple enough in themselves,” replied Harley. “Someone broke into the house one night.”

“Broke into the house?”

“Undoubtedly.”

“But this was never reported to us.”

“Possibly not, but someone broke in, nevertheless. Secondly, Colonel Menendez had detected someone lurking about the lawns, and thirdly, the wing of a bat was nailed to the main door.”

Inspector Aylesbury lowered his eyebrows and concentrated a frowning glance upon the speaker.

“Of course, sir,” he said, “I don’t want to jump to conclusions, but you are not by any chance trying to be funny at a time like this?”