“This is a wretched business,” said Collins.
“It is very terrible, but of course you are used to these crimes in your profession.”
“Yes,” he said solemnly, “and we get used to all kinds of criminals,” and he looked into the empty library.
“Have you any theory as to who did the murder?” said Sanders.
“I never allow myself the luxury of theories,” said Collins.
“Prig,” said the other under his breath.
“It is strange how the murderer escaped, isn’t it?” said Collins. “I wonder if you ever heard tell of any secret doors, or trap doors, or anything of that sort?”
“Oh, really, are we back in the Middle Ages? This is a modern, London house. Besides, by the look of things your men have had a pretty thorough hunt.”
“When did you see Sir James last?” said Collins, lighting another cigarette from his old one.
“Oh, I was with him at the Home Office in the morning of the day.”