"she stood alone in the long, silent, shadowy room, her dread seemed to take shape and sound, to be there audibly breathing and lurking among the shadows...."See in text(III)
In contrast to her earlier delightful descriptions of the house, her husband’s failure to return home incites a much more unpleasant characterization of the library. Now, her new home seems foreboding and full of horrible creatures, her fear practically personified in the lamp’s shadows.