It's Aurinae's sixteenth birthday, and though she's being groomed to become the next Noble of her city Kaeris, she finds herself drawn to the place all mers are so scared of: the Darker Waters.
Except for some reason, she isn't scared. She's fascinated, especially by the sirens that make the melodies that haunt her dreams. And when she finds the source of her temptation, she must defy hundreds of years of mer culture to be where - and with the one - she loves.
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or, Romeo and Juliet but gay and underwater.
In the epic conclusion to the Devil's Deal series, Freya has one final chance to discover the full potential of her own power, and to use it to restore balance in the universe - once and for all. After the destruction caused by Roisin, Ferya and Torix come to terms with their losses and mistakes... And prepare for a final battle that will change everything.