"I need to go to bed," she told the elf, staggering to the door of her room. Before going in, she turned around and asked, "Do you remember that time we discussed the death of Mistress Astoria? You were right, weren't you? Scorpius never saw his mother die. I was convinced he had because I couldn't find any other explanation for why he could see Thestrals at school. But now I know the reason. He saw them because he killed people."