When Luna Elowen Vale finds a strange music box in her relatives' crumbling mansion, she unknowingly awakens Caelum, a boy trapped between worlds. He needs her to fulfill a hidden purpose before the veil closes for a thousand years. But what began as a lie soon feels like love- And breaking the sky may be the only way to stay.

Terminating 'Raeths is risky business, so when an excursion on the outside goes awry, the newly mixed team Taran shrugs it off and digs their heels in, unaware that their uncharted movements have just snagged a thread on the webbed corruption woven just beneath the surface of their world. Ffion Prys' suspicions are first raised by the mad rantings of a target Hiraeth, and it's not long until her fears are mirrored on the faces of her teammates as they struggle with the cards dealt to them, bringing lifelong beliefs to the chopping block. Squabble as they might, they're in agreement on one matter, at least: that no matter what happens next, they have to do the right thing. For the nation; for the survivors. Ffion has never been a fan of cliches, and yet finds herself impossibly less so when her own fingers are burnt from playing with fire. All because doing the right thing, sometimes, just isn't enough.