They couldn't understand the glass. They could see us and they could rush at us, but that thin invisible barrier held them off, stopped them.

10 seconds sound clip from the Three Skeleton Key (Escape) classic radio play.

You can hear this line at 00:13:29 in the radio play.

Quote context

[...]

- Don't rile them, Auguste.

- Give me some more matches. I'll strike them and strike them and strike them until they get scared and go away.

- They won't go away. Not until...

- Not until what?

- Not until they've been... fed. You can take just so much horror and then you get used to it.

- You can take just so much horror and then you get used to it.

- And they were interesting to watch, you know.

- They couldn't understand the glass. They could see us and they could rush at us, but that thin invisible barrier held them off, stopped them.

- From time to time, we caught a glimpse of the rocks below. More rats down there. Swarming brown velvet in the bright tropical sunlight.

- And then the tide began to rise... If only it'd drown some of them.

- Ship's rats don't drown. No, sir. You cannot drown one of them. They're all climbing up the tower.

- This bunch around us is getting thicker.

- Yeah.

[...]