A fun-filled picture book about making friends, trying new things and spreading kindness. Rainbow loves spending time with her best friend, Rain. They do everything together – just the two of them!But one day Rain does something unexpected: she invites the new girl, Star, to join their game. Rainbow is not happy – why would Rain want to play with anyone else?! Watching Rain and Star play together, Rainbow worries that everything is going to change. Has Rainbow lost her best friend forever – or could it be that friendship is even more fun with three?A joyful picture book from Jana Curll, author and illustrator of Mountain and Cloud, shortlisted for the Waterstones Children's Book Prize 2025.