Castle Jennifer Castle 
Butterfly Wishes 1: The Wishing Wings [EPUB ebook] 

Sisters Addie and Clara have just moved to a new house in the country, where they discover that their backyard is a gateway to the enchanted realm of magical butterflies called Wishing Wings. These special butterflies have the power to make wishes come true! When a group of just-emerged butterflies — New Blooms — are in danger of losing their magic, Addie and Clara must team up with a pair of butterfly princesses to save them, making new friends and helping others along the way.