Although no positive identification was soon made, other clues did come in.

Powerful clues that this may be so come from within the book.

A clue could only come from out there in the city.

Because there is only a short period before the next clue comes along, the stress can carry over.

The next clue is coming in a box with a big red X on it.

The first clue that it is something more comes with the choice of starting in August 1997.

He was willing to accept the risk on the chance that the clue would come.

Other clues come from studies too small to be considered definitive.

Another clue about the state of the economy will come on Monday.

One clue may come from the origin of the word itself.