When they had changed their skin many times, the Caddis Worms became more quiet and thoughtful. At last the sister who had first planned to build houses, fastened hers to a stone, and spun gratings across both its front and its back doors. "I am going to sleep," she said, "to grow my feelers and get ready to fly and breathe air. I don't want anybody to awaken me. All I want to do is to sleep and grow and breathe. The water will come in through the gratings, so I shall be all right. I couldn't sleep in a house where there was not plenty of fresh water to breathe." Then she cuddled down and dozed off, and when her brothers and sisters spoke of her, they called her "the Caddis Nymph."