Warning: You are about to read my utterly biggest secrets. Can I trust you? OK then. I'm Ella, and this is my diary.

There's a new girl at school! Her name is Lily and she loves turtles and bouncing on trampolines, just like Ella. She's also an amazing swimmer! So when Ella and her friends find out what the letters 'CF' next to Lily's photo in the sick bay mean, they come up with the perfect idea for their school's annual Fundraising Frenzy.