Eponine can't help but laugh at Hattie's loss of temper, and she can't resist a quick jibe.

"You must watch your temper, Madame. It is running away again."

Nothing in the house leaves, does it not? Eponine might have something to say about that. She feels Hattie ought to lose a little something after the way she had spoken to Eponine.

Once Hattie leaves, she finishes getting dressed again and then obediently goes to wash her face, before going back downstairs. Hopefully Hattie won't notice, but the guest bedroom is now down one small crystal trinket dish.