'No, we mustn't; it's much too horrible for a joke. Well, of course aunt went home and wondered and wondered what could be the matter, and tried to think it out, but, as she says, she could make nothing of it. She began to be afraid that uncle's brain was giving way through overwork, as he had stopped in the City (as he said) up to all hours lately, and he had to go to Yorkshire (wicked old story-teller!), about some very tiresome business connected with his leases. But then she reflected that however queer he might be getting, even his queerness couldn't make whistles in the air, though, as she said, he was always a wonderful man. So she had to give that up; and then she wondered if there were anything the matter with her, as she had read about people who heard noises when there was really nothing at all. But that wouldn't do either, because though it might account for the whistling, it wouldn't account for the dandelion or the Sandpiper, or for fainting fits that turned purple, or any of uncle's queerness. So aunt said she could think of nothing but to read the Bible every day from the beginning, and by the time she got into Chronicles she felt rather better, especially as nothing had happened for three or four Sundays. She noticed uncle seemed absent-minded, and not as nice to her as he might be, but she put that down to too much work, as he never came home before the last train, and had a hansom twice all the way, getting there between three and four in the morning. Still, she felt it was no good bothering her head over what couldn't be made out or explained anyway, and she was just settling down, when one Sunday evening it began all over again, and worse things happened. The whistling followed them just as it did before, and poor aunt set her teeth and said nothing to uncle, as she knew he would only tell her stories, and they were walking on, not saying a word, when something made her look back, and there was a horrible boy with red hair, peeping through the hedge just behind, and grinning. She said it was a dreadful face, with something unnatural about it, as if it had been a dwarf, and before she had time to have a good look, it popped back like lightning, and aunt all but fainted away.' 'A red-headed _boy_?' said Darnell. 'I thought----What an extraordinary story this is. I've never heard of anything so queer. Who was the boy?' 'You will know in good time,' said Mrs. Darnell. 'It _is_ very strange, isn't it?' 'Strange!' Darnell ruminated for a while. 'I know what I think, Mary,' he said at length. 'I don't believe a word of it. I believe your aunt is going mad, or has gone mad, and that she has delusions. The whole thing sounds to me like the invention of a lunatic.' 'You are quite wrong. Every word is true, and if you will let me go on, you will understand how it all happened.' 'Very good, go ahead.'