On the eve of her wedding, mermaid princess Selena is betrayed by her stepsister and fiancé. They rip out her Pearl—the source of her power—and cast her into the abyss.
Left for dead, Selena survives with a dark gift: the stolen Pearl burns its thief from within. When the enemy fleet closes in to finish the job, the Abyssal Queen Ursula—Selena’s grandmother—shatters an ancient pact to descend in fury, crushing an armada with one blow.
Marked as a traitor, Selena rises from exile to reclaim her throne. Every curse her enemy casts deepens her own rot, while her ex kneels in ashes begging for forgiveness that will never come. When blood reveals the truth, the Abyssal Queen returns to settle the score.
