“Surely there are details in her story which, if we looked at in cold blood, would excite our suspicion. These burglars made a considerable haul at Sydenham a fortnight ago. Some account of them and of their appearance was in the papers, and would naturally occur to anyone who wished to invent a story in which imaginary robbers should play a part. As a matter of fact, burglars who have done a good stroke of business are, as a rule, only too glad to enjoy the proceeds in peace and quiet without embarking on another perilous undertaking. Again, it is unusual for burglars to operate at so early an hour, it is unusual for burglars to strike a lady to prevent her screaming, since one would imagine that was the sure way to make her scream, it is unusual for them to commit murder when their numbers are sufficient to overpower one man, it is unusual for them to be content with a limited plunder when there was much more within their reach, and finally, I should say, that it was very unusual for such men to leave a bottle half empty. How do all these unusuals strike you, Watson?”