"Okay," Lavender said slowly. The reference to towers and stairs made absolutely no sense to Lavender, but she thought she could try this, explaining it. She did write romance novels, after all. "Do you want me to explain it to you? I can try. I sort of do it for a living, in a way." She reached out her hand again and squeezed his very gently. "Or you can ask me any questions you have, and I'll answer them for you as much as I can. I can try to help things make sense, the way your Mum did."