“There might be several reasons,” said the big man thoughtfully.

“Well, as a matter of fact there is but one.”

“How do you know, sir?”

“Martin told me himself.”

“What was it?” Burke’s tone had changed a little.

“He had to come. He had no bones about saying so.” Derrick paused a moment. “Sergeant, could an innocent man have felt like that?”

The sergeant stared at his own massive boots, glittering mountains of leather that shone with official luster.

“Anything else, Mr. Derrick?”

“Of course you remember Perkins?”

“Perfectly; the sort of woman one can’t forget.”