After talking with her Mum, Rosie believed she was the most beautiful girl in the whole entire world - but the day she met Penelope Pennington she wasn't so sure.

Penelope Pennington had the perfect hair, the perfect clothes, the perfect shoes and even the perfect cat!

So, when Rosie and Penelope unexpectedly walk home together, they both make some meaningful discoveries along the way. Was Penelope really that perfect?

How does Rosie manage to overcome her self-doubt to lead the way?