"... the mad lady, who was as cunning as a witch, would take the keys out of her pocket, let herself out of her chamber, and go roaming about the house, doing any wild mischief that came into her head. They say she had nearly burnt her husband in his bed once: but I don't know about that. However, on this night, she set fire first to the hangings of the room next to her own; and then she got down to a lower story, and made her way to the chamber that had been the governess's-(she was like as if she knew somehow how matters had gone on, and had a spite at her)-and she kindled the bed there; but there was nobody sleeping in it fortunately. The governess had run away two months before ..."
... and for all Mr. Rochester sought her as if she had been the most precious thing he had in the world, he never could hear a word of her; and he grew savage-quite savage on his disappointment: he never was a wild man, but he got dangerous after he lost her. He would be alone, too. He sent Mrs. Fairfax, the housekeeper, away to her friends at a distance; but he did it handsomely, for he settled an annuity on her for life: and she deserved it-she was a very good woman. Miss Adèle, a ward he had, was put to school. He broke off acquaintance with all the gentry, and shut himself up, like a hermit, at the Hall.
"...and he went up to the attics when all was burning above and below, and got the servants out of their beds and helped them down himself-and went back to get his mad wife out of her cell. And then they called out to him that she was on the roof; where she was standing, waving her arms, above the battlements, and shouting out till they could hear her a mile off: I saw her and heard her with my own eyes.
She was a big woman, and had long, black hair: we could see it streaming against the flames as she stood. I witnessed, and several more witnessed Mr. Rochester ascend through the skylight on to the roof: we heard him call `Bertha!' We saw him approach her; and then, ma'am, she yelled, and gave a spring, and the next minute she lay smashed on the pavement."