This object, Granny Hush whispered, is not what you think. You think it's one of Kipper's old balls but that is because you haven't learned how to listen to the earth yet. When you are old, and have whiskers on your ears, you will understand that the inside of this ball is much bigger than the outside. In fact, the inside is enormous, that is why we can't see inside it very clearly. The inside of this ball is so big that no one can see to the other side of it. I can hold this ball in my hands but the inside stretches past the moon, as far as the furthest star, to the edge of everything…

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