This is a question that wouldn't have occurred to Camilla. "I can't really say. Not a terribly long time, I don't think," she ventures. "It hasn't been a bad dream. I'm sorry you met an unfriendly ghost in yours. It'll all be better now though." She's supremely confident of that. "This ghost I met was a nice one, and she was wearing a shirt that had awfully naughty words on it. What was your ghost like? How did you know it was an unfriendly one?"