If he could then get down through the grate, or find a hidden passageway out, he'd be free.

The scream could be heard, distant but clear, even in the hidden passageway.

Where's the hidden passageway to get us out of here?

A hidden passageway would not have been out of place.

Could I install a hidden passageway in my home?

The only way to open it is to locate where all the hidden passageways are in the school.

Take this quiz to see how much you know about hidden passageways.

It took a little longer than I had expected to find the hidden passageway into the tunnel in the old library.

The captain debated whether to follow her and learn more about the hidden passageway to the underground sea, but he decided against it.

Not until the door to the hidden passageway is secured.