Zodiac Academy 6: Fated Throne by Caroline Peckham

In the sixth installment of the Zodiac Academy series, Darcy and Tory Vega are on the brink of securing their place on the throne, but the road to power is fraught with peril. The Fae world is in turmoil, with alliances shifting and enemies plotting in the shadows. The sisters must harness their growing powers and outmaneuver those who seek to destroy them. As the Heirs become more dangerous and their motives more complex, the twins find themselves torn between love, loyalty, and the brutal demands of their destiny. With the fate of Solaria hanging in the balance, Darcy and Tory must face their darkest fears and make impossible choices that could either save their world or doom it forever.