When I Am Happiest. Book 3: Rose Lagercrantz

It's the second-to-last day of school and Dani's so happy she could write a book about it!
In fact, that's exactly what she's done, although it's not quite finished yet. Npw the book is in her backpack with all the other things she has to take home before the summer break.
But then Dani gets some bad news. Something serious has happened. How will she ever be happy again? How will she ever be able to finish writing her book?
Sometimes a good friend is all you need to make your heart start laughing again.