Mrs. Dashwood: We're leaving for Devonshire as soon as possible.
Edward Ferrars: So far away?
Fanny Dashwood: Don't let the door hit you in the ass on the way out.
Of course, a bit more happens than that. We learn that Mrs. Dashwood moves quickly when motivated, and that she still hopes things will work out for Elinor and Edward. We learn (again) that Elinor is the practical one of the lot, as she encourages her mother to sell her carriage (no horses, plus back then there were carriage taxes in effect) and to take only three servants with them (one man, two women). We learn that Mrs. John (Fanny) Dashwood is so petty and small-minded that she begrudges her mother- and sisters-in-law any nice things.
And the chapter closes with Marianne waxing poetic (in dramatic Marianne fashion) over the house and grounds that she is leaving behind, while taking a swipe at the current inhabitants of Norland, who she assumes will not appreciate the house and grounds as they ought to do. And one has to acknowledge that Marianne might be right about that.
"Dear, dear Norland!" said Marianne, as she wandered alone before the house, on the last evening of their being there; "when shall I cease to regret you!--when learn to feel a home elsewhere!--Oh! happy house, could you know what I suffer in now viewing you from this spot, from whence perhaps I may view you no more!--And you, ye well-known trees!--but you will continue the same.--No leaf will decay because we are removed, nor any branch become motionless although we can observe you no longer!--No; you will continue the same; unconscious of the pleasure or the regret you occasion, and insensible of any change in those who walk under your shade!--But who will remain to enjoy you?"