Hi, I'm Luna! This diary you're reading? My mum's idea. She said it will help me to focus. You see, my mind is always racing with a million thoughts! I have so much I want to say and do! So, I'm going to use this diary to show you EVERYTHING that's going on in my world ...

Luna Merrian has BIG news!

Not only is she loving her role as a Little Librarian, but she is also getting along with her school rival, Jade Jones.
Luna and Jade are becoming friends, and Luna couldn't be happier!

But then Luna sees a birthday party invite that changes everything ...

Can Luna overcome this friendship fail?