Ch. 20 - "Miss Tilney, she was sure, would never put her into such a chamber as he had described! - She was not at all afraid." What I love about this is that Catherine is reassuring herself based solely on her trust in Eleanor's goodness, not because she sees the absolute ridiculousness of the story Henry is telling. Much though I hate to laugh at Catherine, I just can't help it here.

Not a specific line, but all of the passages that describe Catherine's gothic fantasies I find to be wonderfully written and very, very funny. She's so wrapped up in them, and it never occurs to her that there might be other explanations. She's not even thinking straight enough to realize that she's locked the desk, rather than unlocking it! These are yet another example when I feel like JA is reading the story aloud to me. Brilliant!!