But what is all this?
Bad business! Bad business! Stern facts here,--no room for theories.

How lucky that I happened to be out at Norwood over another case! I was at the station when the message arrived.

What d'you think the man died of ?" "Oh, this is hardly a case for me to theorize over," said Holmes, dryly.
"No, no.

Still, we can't deny that you hit the nail on the head sometimes.

Dear me! Door locked, I understand.