More than twenty years ago, the Celestials entered the royal nursery of Ardell and exchanged two children.

The human child born to King Roland and Queen Isolde was taken to the Empyrean. In his place, they left one of their own.

No one knew.

You grew up as a Valmere. Roland and Isolde became your parents. Clara became your sister. Ardell became your home. Your sister thought you were be a better Ruler then her.

And then the Celestials came back.

The young man they bring with them is Paul - the human child who was taken that night. Human by birth, but raised entirely among Celestials, he has no intention of accepting the kingdom, family, or identity everyone assumes should belong to him.

And the Celestials haven't returned merely to correct an old exchange.

The Empyrean is losing ground against an Infernal incursion, and Ithar, the ancient Celestial who remembers the night you were left behind, believes a Celestial raised among mortals may possess abilities his people desperately need. Liora, a Celestial who has always felt an unexplained absence in the Light, has another reason for wanting you there.

She believes you're her sibling.

Now two worlds have discovered that biology and belonging aren't nearly as simple as they thought.

Your parents refuse to stop calling you their child. Clara refuses to stop calling you her sibling. Liora wants the chance to become one. Paul wants everyone to stop deciding where he belongs. And Heaven itself wants you back.

Stay in Ardell. Cross into the Empyrean. Claim the throne. Walk away from it. Master mortal magic, discover what being Celestial means, fight for either world—or refuse to let either one define you.

Everyone has an idea of where you belong.

The choice is yours.