The Last Library of the Gods : The last library keeps one secret: love is the key. (The Chronicles of the Celestial Fold Book 1)

Ink is supposed to be permanent. So was the empire. So was she.
Caelum Vane was the finest scribe in the capital — until a single forged decree unwrote his life and branded his hand with the Mark of the Unreliable. Now he’s the only person alive who can read the way into the Celestial Library, a living archive buried in a mountain, where the books breathe, the shelves hunt, and a prophecy waits to be paid in blood.
Elara is the last priestess of the Silver Flame, sworn to keep the library’s deadliest secret from the woman who burned her order to ash. Valeriana is that woman — the immortal Empress of the Eternal Throne, who has crossed a continent for the godhood the library guards, and who has not let herself need anyone in three hundred years.
Sealed inside the mountain together, hunted by an Inquisition closing in, the three of them discover the prophecy’s true price: to open the final door, the seeker must destroy the one thing they have learned to love within these walls. The library doesn’t want a sacrifice of the body. It wants the armor around the heart — and it has chosen the three people least able to give it.
As an enemy becomes a lover and a tyrant becomes a woman, Elara must decide whether the heretic’s oath or the empress’s heart will save the world — and whether love, in the end, is the thing the prophecy means to take, or the only thing that can pay it.
The Last Library of the Gods is the first book in The Chronicles of the Celestial Fold — a slow-burn, found-family romantasy of enemies to lovers, forced proximity, and a sapphic love story at the heart of an impossible triad. Open-door heat. Earned happily-ever-after. A door at the bottom of the world that should have stayed shut.
For readers who love: enemies to lovers · morally grey immortal queens · touch-her-and-die protectiveness · a living magical library · found family · slow burn · sapphic romantasy · “there was only one bed” in a collapsing mountain · a redemption that costs something.