Grace Kellner is a small Ravenclaw who's always seen carrying a certain journal. Most people assume it's a diary, but she knows it's not. It's a book full of ideas. Ideas that seem impossible. Fred and George Weasley become interested in the book when Grace's friend Reese let's something slip. "Diary? Oh Merlin no! She's always flipping pages, always adding something, and it's very protected. If it was a diary there'd be no need to protect it, her life isn't very interesting. Probably planning the greatest prank ever." Now the twins want to know what Grace is planning, and they'll do anything to find out. -Art on cover belongs to Charlie Bowater- -Harry Potter characters and universe belong to J.K Rowling-