Man had conquered this mount, you see, from Madam How, hundreds of years ago.

And she always lets man conquer her, because Lady Why wishes man to conquer: only he must have a fair fight with Madam How first, and try his strength against hers to the utmost.

So man conquered the wood for a while; and it became cornfield instead of forest: but he was not strong and wise enough three hundred years ago to keep what he had conquered; and back came Madam How, and took the place into her own hands, and bade the old forest trees and plants come back again--as they would come if they were not stopped year by year, down from the wood, over the pastures--killing the rich grasses as they went, till they met another forest coming up from below, and fought it for many a year, till both made peace, and lived quietly side by side for ages.
Another forest coming up from below?
Where would it come from?
From where it is now.

Come down and look along the brook, and every drain and grip which runs into the brook.

What is here?
Seedling alders, and some withies among them.
Very well.