My children's favourite in this excellent series of books. The Witch's Children continually cause mayhem with spells that they do not know how to reverse, until mum comes to put everything right. So, the first day of school gives ample opportunies for trouble. When their friend is scared to go in when she sees older children, they turn her into a troll. She is no longer scared, but she terrorises everyone else - oh, and eats the Wendy House... This is a very funny story and the reader knows that whatever happens it will all be fine at the end. The illustrations are also a joy.