IN the last days of Narnia, far up to the west beyond Lantern Waste and close beside the great waterfall, there lived an Ape. He was so old that no one could remember when he had first come to live in those parts, and he was the cleverest, ugliest, most wrinkled Ape you can imagine. He had a little house, built of wood and thatched with leaves, up in the fork of a great tree, and his name was Shift. There were very few Talking Beasts or Men or Dwarfs, or people of any sort, in that part of the wood, but Shift had one friend and neighbour who was a donkey called Puzzle. At least they both said they were friends, but from the way things went on you might have thought Puzzle was more like Shift's servant than his friend. He did all the work. When they went together to the river, Shift filled the big skin bottles with water but it was Puzzle who carried them back. When they wanted anything from the towns further down the river it was Puzzle who went down with empty panniers on his back and came back with the panniers full and heavy. And all the nicest things that Puzzle brought back were eaten by Shift; for as Shift said, “You see, Puzzle, I can't eat grass and thistles like you, so it's only fair I should make it up in other ways.” And Puzzle always said, “Of course, Shift, of course. I see that.” Puzzle never complained, because he knew that Shift was far cleverer than himself and he thought it was very kind of Shift to be friends with him at all. And if ever Puzzle did try to argue about anything, Shift would always say, “Now, Puzzle, I understand what needs to be done better than you. You know you're not clever, Puzzle.”And Puzzle always said, “No, Shift. It's quite true. I'm not clever.” Then he would sigh and do whatever Shift had said.
One morning early in the year the pair of them were out walking along the shore of Caldron Pool. Caldron Pool is the big pool right under the cliffs at the western end of Narnia. The great waterfall pours down into it with a noise like everlasting thunder, and the River of Narnia flows out on the other side. The waterfall keeps the Pool always dancing and bubbling and churning round and round as if it were on the boil, and that of course is how it got its name of Caldron Pool. It is liveliest in the early spring when the waterfall is swollen with all the snow that has melted off the mountains from up beyond Narnia in the Western Wild from which the river comes. And as they looked at Caldron Pool Shift suddenly pointed with his dark, skinny finger and said, “Look! What's that? ”