I think that this project sounds promising but all of the hidden facts should be out in the open !

But that was because men of crime had not guessed the hidden fact upon which The Shadow depended.

They're like beacons: they light up whole fields of hidden facts, often long before logic can.

Gently the old man rubbed the top of his scalp, as if probing for hidden facts.

The Shadow had gone to probe into the hidden facts of murder.

A hidden fact of the victim is revealed which even his children did not know about...

Any hidden fact - what if Bush has covered up a past of drinking, drugs and making jokes about ambassador's wives?

She delighted in digging into things and pulling out hidden facts.

The Shadow proceeded with his reconstruction of the hidden facts behind a strange mystery.

She saw it as a hidden fact which is often unseen or not discussed in a male dominated, justice and judgment based approach to ethics.