Part 2 from The Voyage of the Dawntreader:
But the lion told me I must undress first. . . .
I was just going to say that I couldn’t undress because I hadn’t any clothes on when I suddenly thought that dragons are snaky sort of things and snakes can cast their skins. Oh, of course, thought I, that’s what the lion means. So I started scratching myself and my scales began coming off all over the place. And then I scratched a little deeper and, instead of just scales coming off here and there, my whole skin started peeling off beautifully, like it does after an illness, or as if I was a banana. In a minute or two I just stepped out of it. I could see it lying there beside me, looking rather nasty. It was a most lovely feeling. So I started to go down into the well for my bathe.
But just as I was going to put my feet into the water I looked down and saw that they were all hard and rough and wrinkled and scaly just as they had been before. Oh, that’s all right, said I, it only means I had another smaller suit on underneath the first one, and I’ll have to get out of it too. So I scratched and tore again and this under skin peeled off beautifully and out I stepped and left it lying beside the other one and went down to the well for my bathe.
Well, exactly the same thing happened again. And I thought to myself, oh dear, how ever many skins have I got to take off? For I was longing to bathe my leg. So I scratched away for the third time and got off a third skin, just like the two others, and stepped out of it. But as soon as I looked at myself in the water I knew it had been no good. . . .