Daughters of the Moon is a novel series by Lynne Ewing. It is about four girls, later on five, who are mortal godesses and fight an ancient evil called The Atrox. They each have different powers, destinies, and dark sides. They all wear moon amulets. When they turn 17, they have to make a choice. They can either become guardian spirits or continue their lives but as mortals who have forgotten their lives and consequently, their powers, as Daughters of the Moon. All of the Daughters live in Los Angeles, battling the Atrox and its dark Followers.