He opened it and read quickly the list of clues they already had.

There might have been a bit of clue in the name.

That was the type of clue they needed to find.

It was the kind of clue the police would just love to find.

Like I really had some kind of clue how to make that work.

Anyway, getting her to talk might give us some kind of clue.

Until a few years ago, nobody even thought to look for this kind of clue.

I thought the pattern of clues would make sense to you.

That must be a sort of clue, don't you think?

Talking to his brothers again had provided nothing new in the way of clues.