Love and Hatred by Marie Belloc Lowndes

Mother and son dined alone together, and then, rather early, Mrs. Tropenell went upstairs.

For a while, perhaps as long as an hour, she sat up in bed, reading. At last, however, she turned off the switch of her electric reading lamp, and, lying back in her old-fashioned four-post bed, she shut her eyes for a few moments. Then she opened them, widely, on to her moonlit room.