Las gemas mágicas

"Lily Medialuna has just arrived in the city of Piedravalle: a new house, a new school, and new powers? Hand in hand with her new friends, Lily discovers that she is a witch! And, like them, she will have to go to the Library to learn how to use her powers, find her power stone and meet her guardian animal. Together they will try to protect the citizens of Piedravalle from the evil enchantments and dangerous creatures that stalk them. But they will have to do it without being discovered, because it is very important that no one finds out that they know how to do magic. You know; witches have never been much favored! "Witches, warlocks, enchanters, sorceresses, by the magic bestowed on you, now keep this promise: you will never reveal the knowledge of the Library to those who cannot use magic, and you will keep the secret of your powers forever."--