Paula Garces 
The World of Aluna #1 [EPUB ebook] 

A conquistador, Francisco Cortes, interrupts a ritual in the jungles of South America and encounters the powerful Goddess – Pachamama. Back in Spain years later, his young daughter, Aluna, would rather spend her time fencing with her friend Antonio than take dancing lessons. When Francisco gives Aluna a strange green gemstone, she discovers that she has supernatural strength. But is this a blessing or a curse?