Calor by J.J. Fischer

Book 1 of Nightingale Quartet

Summary: 

What if you could edit memories with a single touch?

The world-that-was is gone, lost to everything except living memory . . . but remembering comes at a terrible price. Sixty-two years after the apocalypse, a new society has emerged from the ashes of the old world where highly valued memories are traded and nostalgia is worth dying—and even killing—for.

Enslaved by a cruel master, Sephone Winter is forced to use her rare ability to manipulate memories to numb the darkest secrets of the ruling aristocracy.

Then Lord Adamo appears, speaking of a powerful relic capable of permanently erasing memories and recovering Sephone’s own lost childhood. But not everything about the young lord is as it seems, and soon Sephone must choose between helping Lord Adamo forget his past or journeying deep into the land of Lethe, where the truth about who she really is might finally be revealed . . . and a long desired future restored.

The Nightingale Trilogy is a fantasy transformation of Hans Christian Andersen's beloved 1843 tale The Nightingale, with echoes of the myths of Hades and Persephone.

Opening Lines:

His father might be in the middle of saving the world, but Dorian was still bored. Nulla was about as close to the apocalypse as a place could get, and that was saying something, because the world had already ended once.