Realta by Rachel Eaton

When the world was new, the twelve star signs descended to bless humanity with magic according to their date of birth. Fourteen worthy people, called the “Realta,” were given a star from each Sign that allowed them to receive prophecies of the future called “horoscopes” and summon great power to defeat the Fae: beings that tormented humanity. However, much has changed since Elowen was a child. Magic is illegal, the Fae are getting stronger, and the Realta have been forgotten…until our Virgo meets a certain Capricorn.