"Come in when everything's over!" The Doctor glanced up and met the detective's eyes, cold and menacing.
"You took my revolver from me downstairs," he said.

"I'll trouble you for it." The Doctor got heavily to his feet.

The others, their suspicions confirmed at last, looked at him with startled eyes.

The detective seemed to enjoy the universal confusion his words had brought.
Slowly, with sullen reluctance, the Doctor yielded up the stolen weapon.

The detective examined it casually and replaced it in his hip pocket.
"I've something to settle with you pretty soon," he said through clenched teeth, addressing the Doctor.