Azmina the Gold Glitter Dragon (Dragon Girls #1)

"Azmina, Willa, and Naomi are thrilled to learn they're Glitter Dragon Girls. Summoned to the Magic Forest by its magnificent ruler, the Tree Queen, the girls quickly find out their dragon-selves have unbelievable abilities. As Dragon Girls, they are sworn protectors of the forest and must help keep it safe from the troublesome Shadow Sprites, who are determined to take the forest's magic for their own"-