Trust the rat
From Create Your Own Story
"He must know the way out," you think aloud.
You turn the rusty handle.
The both of you step through into pitch darkness. You fumble for the torch and flick it on. The beam of light picks out a narrow corridor. Kwan is scuttling ahead... to yet another door!
This one opens easily, too, and you three are in a small empty room. The air is thick with mustiness. You try not to cough. Charmaine clutches your hand. Kwan is squeaking from across the gloom.
You point the torch. A door, sure enough, but this time a thick board is nailed across it.