The Shadow She Keeps. Some Bonds are Forged in Darkness and some lovers are worth burning kingdom for

She mastered the art of being unseen. He was the one shadow she couldn't look away from. For fourteen years, Seraphine Voss has survived the gilded cruelty of Vaelthorn's court the only way she knows how: by becoming indispensable, unreadable, and utterly alone. She knows every secret whispered behind painted smiles. She has never once let anyone close enough to learn hers. Then a stranger steps out of the candlelight - a man who moves like he was never meant to be seen, watching her like he already knows the truth she's spent a lifetime burying. Kael isn't here for her.
He's here for documents sealed in a vault that doesn't officially exist, sent by a man whose name she's never heard, chasing a mission that has nothing to do with the quiet, composed woman who catches him in a corridor and refuses to let him disappear back into the dark. But some lies are built to collapse the moment two people stop performing for everyone else and start telling each other the truth.
What they uncover beneath Vaelthorn's gold light will not just expose a stolen kingdom - it will expose exactly who Seraphine was always meant to be, and exactly what Kael is willing to burn down to stand beside her when she claims it. Some bonds are forged in darkness. And some lovers are worth burning kingdoms for.