When they turn 17, they have to make a choice to become something more or continue their lives as mortals giving up their powers, as Daughters of the Moon.
[1] "Vanessa, Catty, Serena, Tianna and Jimena seem like ordinary girls living in Los Angeles.
Vanessa can become invisible, Catty travels back in time, Serena reads minds, and Jimena has premonitions and Tianna can perform telekinesis.
In book 4, she starts to date Toby, a Regulator, who wants the Secret Scroll destroyed but he endangers all of the girls, including Vanessa.
In book 7, Vanessa starts to date a mysterious guy named Hector, who later turns out to be a moon demon.
In the end, after she helps to defeat the Atrox, Serena has to make the choice of losing her memories of what she is and her powers, becoming a guardian spirit, or becoming the goddess of the dark.
Jimena used to be an incredibly tough hood chick with her gang from her neighborhood, Ninth Street, or el Nueve until she learned of her destiny.
As the series goes on, it is revealed that Jimena is actually a year older than her friends, so she is forced to be the first to make the choice of losing her memories of what she is and her powers, or becoming a guardian spirit.
However, later in the series, it is established that she is the reincarnation of the moon goddess Pandia who was Maggie's and the other early daughters' mentor.
Ultimately, she pieces together the facts: she grew up in foster homes all over LA because her parents and little sister, Jamie, were killed by Followers when she was a child.
Tianna was created by the Atrox and thus was born without a soul, but Selene kidnapped her when she was a baby and gave her to a Daughter.
He gave Tianna the sword to bind the Atrox to its shadow, helped in the disguise of monk so that Kyle escape, and visited Serena and Vanessa while they were held captive in Nefandus.
She fell in love with a young, handsome soldier named Hector, who later became captured by the Atrox and became the moon demon who tried to marry Vanessa in book 7.
Angered by her sister's choice and Hector's transformation, she asked Selene to live long enough to see the Atrox destroyed.
In the series, Morgan is introduced in "Goddess of the Night" as a wealthy, narrow-minded, and snobbish socialite friend of Vanessa's.
Catty, Jimena, and Serena dislike her, mostly due to the fact that her mind seems encompassed around nothing but boys and clothes although Vanessa once noticed that Morgan is deliberately trying to be care free to cover up her own insecurities.
Morgan, normal once more and just as cold-hearted, pursues Collin Killingsworth, Serena's older brother, in "Into the Cold Fire".
She is described as having long maroon hair and icy blue eyes, and has the letters S-T-A carved into her chest with a razor blade.
He first stepped into Nefandus to save a friend who had been lured into the realm with promises of learning magic, only to become captured and enslaved himself.
Kyle escaped with the help of a monk (Stanton in disguise) who showed him the portals and told him the myth of a black diamond that could set him free.
In pursuit of this jewel and his freedom, he is tricked by Adamantis into bringing Catty into Nefandus, inadvertently putting her in danger.
In The Final Eclipse (Book #13), Kyle sacrifices his life so that Catty could infiltrate the Inner Circle and destroy the Atrox.
In the series, Lambert Malmaris is a member of the Inner Circle and allowed to wear the Phoenix Crest, which makes him very powerful.
Aura, known then as Ursula, became renowned for her unearthly beauty, attracting even the Atrox, who offered her father great treasures if she would betroth it.
Seeing her father's poverty, Ursula agreed to the marriage and pledged her devotion for all of eternity, asking only that her beauty should last forever.
When she stepped into the cold fire to receive immortality, the flames destroyed her flesh and bones, reducing her to a wind spirit.
Aura appears in Possession (Book #8), when she begins taking over Serena's body in an attempt to use her powers to free Lambert from Stanton's memories.
In Goddess of the Night he is blond with black roots but in the 7th book he shaves his head and tattoos "Atrox" on it.
In order to protect her daughter from Regulators and from her destiny as heiress to the Secret Scroll, she abandons Catty on the side of a deserted highway after having Stanton remove her childhood memories.
She then settles near Catty and watches over her without daring to reveal her presence, for fear that she would put her daughter in danger.