The Zodiac Academy series is set in Solaria, a magical realm inhabited by Fae whose powers are determined by their astrological signs and corresponding elemental abilities. This world is governed by a rigid hierarchy where magical strength and lineage dictate social standing. The series centers on Tory and Darcy Vega, orphaned twin sisters raised as mortals in the human world, unaware of their true heritage. On their 18th birthday, they discover they are Fae princesses and the long-lost heirs to the Solarian throne, prophesied to rule alongside four other Celestial Heirs. The Heirs are the children of the Celestial Councillors who originally took over rule of Solaria after the king and queen, the sisters’ parents, were killed by Nymphs, who drain Fae power and use it for themselves.

Tory and Darcy are subsequently enrolled in Zodiac Academy, an elite and brutal institution where they must learn to control their newfound powers. Each Fae is revived by their associated element, with the Vegas aligning with fire; as such, their Order—or mythical animal aligning with their powers—is assumed to be a Fire Harpy. Their arrival is met with hostility from the Celestial Heirs—Darius Acrux, Caleb Altair, Seth Capella, and Max Rigel—who view the twins as a threat to their own claims to power. The Heirs use their established dominance to torment and ostracize the Vega sisters, creating a hostile environment where Tory and Darcy must fight for survival, master their abilities, and navigate complex relationships while uncovering the secrets of their past and the conspiracy that led to their parents’ demise.

The first installment focuses largely on the hazing faced by the Vega sisters, while the second culminates in an attack by the Nymphs. In the third book, The Reckoning, Solaria grapples with a declaration of war from the Nymphs while Darius’s abusive father, the Celestial Councillor Lionel Acrux, conspires with other powerful Fae to use the twins in a Lunar Eclipse ritual to gain shadow powers. Darius and a Vampire professor, Lance Orion, seek to stop the plot, as they respectively care for Tory and Darcy. However, Darius’s brother Xavier’s life is also at risk in the ritual, and they save him over protecting the twins. Lionel and the group—including Orion’s mother, Stella—succeed in gaining their powers. The ritual reveals Tory and Darcy’s true Order is the Phoenix, a rare and powerful alignment. Lionel attempts to wipe their memories after the ritual, but, unbeknownst to him, he fails.