1 Dwalin: 'nd hoo d'ye supoose wi're gooing tae git oot o' here, then? {translation: And how are we going to get out of here?}
2 Lambert: You're a dwarf. Can't you detect shifting stone blocks and secret passages and stuff?
3 Dwalin: Ooh, aye. That I can, laddie! {translation: Why yes, I can!}
4 Lambert: Excellent! So?
4 Dwalin: I detect there ain't any! {translation: I detect there aren't any!}

There's nothing like knowing your situation is hopeless to make your situation feel even more hopeless.

---

2019-08-17 Rerun commentary: At least if you know your situation is hopeless you can give up hope and just enjoy your last few hours, instead of stressing about trying to find a way out.