To Desire by Cecelia Mecca

In a land torn by war, a seer’s forbidden knowledge sparks an unexpected love.

Sir Darien of Crimson Hollow, heir to an earldom, is sworn to the Guardians of the Sacred Oak, a secret knightly order dedicated to restoring England’s rightful queen. Duty has always anchored him—until he meets Liana Fletcher, the enigmatic seer’s daughter whose beauty and special abilities awaken something within him.
Raised in secrecy on the Isle of Ely, Liana is trained to read the ancient runes—a power as dangerous as it is profound. Drawn to Darien’s intellect and honor, she finds herself breaking the one vow she ever swore to keep: secrecy. As political alliances shift and whispers of sorcery stir unrest, Darien and Liana must rely on each other to navigate a treacherous path that could change England’s future—and their own.