Beauty is on the Inside - Frank Scott - Bog

Five-year-old Betty doesn't like how she looks. She wants to look like Aunt Tessie-and be bigger so she can stop her older brothers from teasing her.
Luckily, with the powerful assistance of Oliver the Oak Tree and the fairies Melissa and Melinda, she goes on a magical journey into her heart to discover her true beauty.
"`Where am I?' she asked her fairy friends.
`Inside the Beauty,' replied Melissa.
`Inside your heart,' added Melinda."