“Have you reached any conclusions yet, Crewe?”
“About this murder?”
“Of course.”
“I have not come to many definite conclusions so far,” said Crewe meditatively. “But of one thing I am certain. The unravelling of this crime is not going to be quite such a simple matter as Inspector Payne seems to think.”
“I gathered that you were doubtful about his theory that the man who killed Lumsden got in through the window.”
“Doubtful about it?” echoed Crewe. “Doubtful is a mild word. I am absolutely certain that he didn’t get in through the window.”
“But the catch was forced.”
“It was forced from the inside.”
Marsland looked at him in amazement.
“How did you find out that?” he asked.