Hi, trying to remember the name of a book I read when I was young. A young boy had to write a school project over the summer holidays and leaves it really late as he is too busy playing with the ghost he has discovered in his bedroom cupboard, then at the last minute they get stuck into it and write an award winning anthology of famous historic ghosts, much to his sister's annoyance who has been working really hard on hers for weeks. I was thinking it was called Henry's ghost but think I'm getting confused with another childhood fave.... Henry's leg. Can anyone help?