Life is not going at all well for ten-year-old Pepper Morgan. Her best friend has moved away and her parents have decided to get divorced - all in the same week! Then, to cap it all, her mum tells her to start keeping a diary as it will 'help her to feel better about everything.' Pepper doesn't see how writing about her cataclysmic life can possibly make it seem any better and she immediately labels it her 'DIARY OF DOOM!' But as soon as she starts keeping her diary something weird happens - for someone as creative and expressive as Pepper it's actually a lot of fun writing about her life, in spite of all the doom. Which is a good job really, because Pepper's imaginative, dramatic nature has a knack of getting her into all kinds of scrapes and her diary ends up providing the perfect outlet.