Accordingly she opened her locket and took out of it a small blue flower, looking as if it was made of enamel, and stuck it in her hair over her forehead. As she did so she vanished, but I could still feel the weight of her on my knee. When she took it out again (as no doubt she did) she became visible, put it back in the locket, and smiled agreeably at me. Naturally, I had a good many questions to ask about this, but you will hardly expect me to put them all down. Becoming invisible in this way was a privilege which the girls always had till they were grown up, and I suppose I may say "came out." Of course, if they presumed on it, the lockets were taken away for the time being--just in the same way as the boys were sometimes stopped from flying, as we have seen. But their own families could always see them, or at any rate the flowers in their hair, and they could always see each other. But dear me! how much am I to tell of the conversation of that evening? One part at least: I remembered to ask about the pictures of the things that had happened in former times in places where I chanced to be. Was I obliged to see them, whether they were pleasant or horrible? "Oh no," they said; if you shut your eyes from below--that meant pushing up the lower eyelids--you would be rid of them; and you would only begin seeing them, either if you wanted to, or else if you left your mind quite blank, and were thinking of nothing in particular. Then they would begin to come, and there was no knowing how old they might be; that depended on how angry or excited or happy or sad the people had been to whom they happened. And that reminds me of another thing. Wag had got rather fidgety while we were talking, and was flying up to the ceiling and down again, and walking on his hands, and so forth, when his mother said: "Dear, do be quiet. Why don't you take a glass and amuse yourself with it? Here's the key of the cupboard." She threw it to him and he caught it and ran to a tall bureau opposite and unlocked it. After humming and flitting about in front of it for a little time, he pulled a thing like a slate off a shelf where there were a large number of them. "What have you got?" said his mother. "The one I didn't get to the end of yesterday, about the dragon." "Oh, that's a very good one," said she. "I used to be very fond of that." "I liked it awfully as far as I got," he said, and was betaking himself to a settle on the other side of the room when I asked if I might see it, and he brought it to me. It was just like a small looking-glass in a frame, and the frame had one or two buttons or little knobs on it. Wag put it into my hand and then got behind me and put his chin on my shoulder. "That's where I'd got to," he said; "he's just going out through the forest."