Away ran one of the fairies, and soon came back with a little white cap, which she placed upon Annie's head, saying: "This is our thinking-cap", and as soon as it touched the child's brown curls, she cried: "I've thought! If you mix yellow and blue together it will make green; but how can we do it?" "Oh, _we_ know!" all the six cried together, and they brought a lily filled with dew, and the fairy with the yellow dress and the one with the blue dress dipped their little skirts in it, and they stirred the dew around with a tiny wand, and took out a lovely green robe, which was put on the fairy who had chosen that color, and she began to smile very sweetly. Now, the next one stepped up, and said: "_I_ want a dress of purple like the beautiful sweet violets which grow in our little gardens." As Annie still had the thinking-cap on, she quickly told them that red and blue must be mixed together, and another lily was brought and the red and blue dresses dipped in it; and after some stirring, out came a beautiful purple frock, and the fairy who had chosen this smiled even more sweetly than the other one. Now, Annie turned to the last one and asked her what color she wanted, and she replied: "_I_ want a dress of orange." "I do not need the cap this time," said Annie, "for I remember that red and yellow will make orange." So a third lily was brought by the fairies, and when the red and yellow dresses were dipped in it, out came one of an orange color, and the fairy who put this on really laughed aloud. Then taking hold of hands, all the little things began to dance gayly around Annie, who was quite tired from her long journey, and had asked permission to lie on the soft bed of moss. She noticed that wherever the red fairy went the green one followed close behind. The blue fairy and the one with the orange dress kept close together with their arms around each other, and the yellow and purple fairies kissed, and seemed to say such very pretty things of each other that Annie thought they must be the _complementary_ colors that she had heard her mother talk about. Just now it grew quite dark, and as Annie looked up at the clouds she felt a rain-drop on her cheek, and looking at her companions she saw that every drop clung to their clothing, and looked like beautiful diamonds and pearls. The shower lasted only a little while, and then the sun came out, and the fairies all called out: "Good-by, kind Lady Annie, we are wanted now away up in the sky!" and they floated up one above the other, and stretched themselves out quite long, and arched their bodies very gracefully; and as Annie turned her face away from where the sun was setting, she saw in the opposite direction a beautiful rainbow, and she knew why the fairies had been called away. "Annie! Annie!!"