“Days were like long twilights in the house under the black walnut trees; through untrimmed shrubs screening the windows the sun scarcely shone. It was a low, white frame house with a sagging porch roof supported by two chains that through years of stress had cracked the overhang of the main roof where they were attached, pulling it downward at so noticeable an angle that everything—overhang, chains, porch roof—appeared checked from collapsing by nothing more than the tar paper over the cracked boards.”