Our six month old baby is going into hospital for an operation on her hip which is dyslocated, and then will be in a spica hip cast for several months. Does anyone know of a good book which might help my three year old daughter to understand what's going on? She's quite a calm kid and was present at her sister's water birth a few months ago. I don't think she'll be phased but would just like to give her a head start in understanding what's going to be happening.