Boston Blackie

What do you mean?

Well, Miss Carew here has a strong alibi for Blackie, and I'm still looking for a loophole, but...

Under the circumstances, I'm afraid I can't hold him.

Well... After all, you were sure that the emerald must still be on the train.

That's right, Mr. Stevens, it is.

That's what I tried to tell you before the Inspector shut me up.

Oh, so you know.

Well, come on, Blackie, where is it?

I didn't say anywhere.

Uh, Mr. Stevens, you're rather absent-minded, aren't you?

Absent-minded?

Why, no.

Well, perhaps I'm jumping to conclusions, but, uh, of course, if you'll remember, you left the diner without paying your bill.

I did?

Oh, not that I minded buying you dinner, Mr. Stevens, but it occurred to me that if you were absent-minded enough to forget your dinner check, you, uh...

You also might have forgotten something else.

How could I forget the start of the Nile?

I put it in my vest pocket just before I went into the diner.

Oh.

Oh, are you sure you put it in your vest pocket, Mr. Stevens?