Leilani Stellarion is cursed.

The last surviving member of an ancient bloodline, she's shunned for the volatile Starborn magic that grants her prophetic visions – and is slowly corrupting her mind. Branded a pariah, Leilani bears the legacy of the Sistertouched, who unleashed the Sickening: a deadly curse that's dragged the four realms of Arcelia into war and ruin.

Heir to a tainted throne, Leilani's father brokers an arranged marriage with her childhood rival to wrest the line of succession away from her. And to make matters worse, her mother's health is failing by the day, and Leilani believes her magic is to blame.

When a prophecy reveals the existence of a relic that could end the Sickening, Leilani seizes her chance to escape the court and reclaim her fate. To recover the lost sceptre, she must survive the perilous journey to the Astral Mountain and perform an ancient blood rite – one that demands unity between the feuding realms.

If she's to succeed, Leilani must forge an uneasy alliance with sworn enemies, outwit rebel forces, and hide her growing feelings for a rival envoy, all under the gaze of her watchful fiancé. But something sinister hunts them through the mountains: a faceless spectre with a centuries-old grudge, determined to claim the lost sceptre for herself.

As darkness poisons her mind, Leilani must confront the truth of her magic – before it consumes her, and everything she loves.