About ten o'clock
As the evening comes on , an incomprehensible feeling of disquietude seizes me , just as if night concealed some terrible menace toward me . I dine quickly , and then try to read , but I do not understand the words , and can scarcely distinguish the letters . Then I walk up and down my drawing-room , oppressed by a feeling of confused and irresistible fear , a fear of sleep and a fear of my bed . About ten o'clock I go up to my room . As soon as I have entered I lock and bolt the door . I am frightened -- of what ? Up till the present time I have been frightened of nothing .