i dont want to tell you what happens, hehe, in case someone who hasnt read it reads this and its ruined for them, hehe! :) but i will say that the ending is very good, and the way its written means that she doesnt have to write anymore...which may mean someone dies, or it may mean that something else happens, hehe!
you should try reading the books, even though they're sold as children's books they're still really good! :)