The Queens of Renthia, book 1: The Queen of bloodSarah Beth Durst2016

Everything has a spirit: the willow tree with leaves that kiss the pond, the stream that feeds the river, the wind that exhales fresh snow . . .
But the spirits that reside within this land want to rid it of all humans. One woman stands between these malevolent spirits and the end of humankind: the queen. She alone has the magical power to prevent the spirits from destroying every man, woman, and child. But queens are still just human, and no matter how strong or good, the threat of danger always looms.
With the position so precarious, young women are chosen to train as heirs. Daleina, a seemingly quiet academy student, is under no illusions as to her claim to the throne, but simply wants to right the wrongs that have befallen the land. Ven, a disgraced champion, has spent his exile secretly fighting against the growing number of spirit attacks. Joining forces, these daring partners embark on a treacherous quest to find the source of the spirits’ restlessness—a journey that will test their courage and trust, and force them to stand against both enemies and friends to save their land . . . before it’s bathed in blood.

Titre original : The Queens of Renthia, book 1: The queen of blood (2016)