It's hard for a toddler to give up their baby bottles. In this book, a little girl realizes that only babies drink from bottles. She is encouraged to become a BIG GIRL by giving her bottles to the Bottle Fairy, who needs lots of bottles to feed the baby unicorns in her care. The Bottle Fairy leaves a special gift, a Letter, and a BIG GIRL Certificate in exchange for the bottles to thank the little girl for her kindness to the baby unicorns. After reading the story, encourage your toddler to gather all her bottles and leave them for the Bottle Fairy. Parents can ensure that the Letter and BIG GIRL Certificate included in the book (and possibly a small gift) are given by the Bottle Fairy when the bottles "disappear".