Raskolnikov had just passed and heard no more. He passed softly, unnoticed, trying not to miss a word. His first amazement turned gradually to horror, like a shiver running down his spine. He had learned, he had suddenly and quite unexpectedly learned, that the next day at seven o’clock Lizaveta, the old woman’s sister and only companion, would be away from home and that therefore at seven o’clock precisely the old woman would be left alone.