I must have read this book twenty times when I was little. It's a lovely story of two little girls who are in the hospital with scoliosis and are put in the same room. One is a tomboy, and the other has created an elaborate fantasy world for herself, complete with castles and magic. Of course the tomboy learns to see magic in the real world, and the dreamer learns to live a little more in the here and now; but this fairly standard story is made memorable by the vivid characterization and description. I wish it weren't out of print!