Patricia Wentworth 
Latter End [EPUB ebook] 

The room had seemed dark to Mrs. Latter when she came in, but that was because everything in it was black. The carpet on the floor, the hangings covering the walls, the long straight curtains, were all of the same even velvety blackness. But it was not as dark as she had thought. Through the one unscreened window light shone in. She found herself facing this light, as she faced the man who called himself Memnon, across the table which stood between them. It was quite a small table, covered with a black velvet spread, and seeming smaller because the old man in the chair was so large.