The Vicious Fae King, livre ebook

*"She's fading faster."*
Bryony says it flat, like a diagnosis of rot in a root, because if she lets the crack in her voice widen she will shatter. She grinds feverfew into paste fine enough to slip through a sieve. Behind her, her sister's breathing comes in shallow drags, each one thinner than the last.
Lili is twelve. The blue has crept past her knuckles toward her wrist, like moss spreading across a grave, and yesterday it only reached her fingertips. Bryony has salted every sill and doorframe, hung rowan above the lintel, buried iron nails under the threshold. None of it stopped whatever took root in her sister's blood.
Thornwood has been buried in snow for seven winters, longer than any living villager remembers, so everyone in the village is pale. But Lili's breath fogs even when the fire roars.
In the back of their dead mother's journal, pressed between a list of moon phases and a sketch of a three-leafed herb, there is a note in her handwriting. *If the cold takes root in the blood, look north. The Winter Court owes a debt to our line.* Their mother was a hedge-witch who never once spoke of the fae, not even when Bryony asked about the silver birthmark on her wrist.
Fourteen days until the next full moon. Fourteen days until the cold reaches Lili's heart.
So Bryony goes north, and the man on the hoarfrost throne tells her precisely what her one piece of leverage is worth. *"That mark is a child's promise. A whim spoken in the dark of a mortal winter, with no binding power under the Law of Echoes."* Lucian Vale is fae, and fae cannot lie.
He also tells her what is actually killing her sister, and it is not a spell cast by a hand she can find. It is a blood debt: a bargain made seven generations ago, sealed in the Law of Echoes, binding the daughters of her family to the Winter Court until the seventh generation reached her eighteenth year.
Bryony did not come as a guest and she is not treated as one. Under the same law, walking into his world of her own will makes her his to keep, and the court she is held in has been starving for seven years under a lord who has not troubled himself about it. The leverage she has left is her own refusal to eat.
This is a fae romantasy of blood debts and exact wording, with a silver fox once cut out of a snare, a memory traded at a guardian's threshold, and a countdown that keeps getting shorter. The heat is closed-door.