Gatekeeper's Key by Krista Wallace

SPFBO8

Outcast swordfighter, Kyer Halidan, walked out of a cornfield at the age of three. Twenty years later, she leaves her adopted home to discover who put her there. And why. When she kills a man in a duel, she catches the interest of one of her greatest heroes, who invites her to join his company on a mission. But the man she killed had powerful friends. Desperate to learn what she knows about their plans, her new enemies pursue her relentlessly. Kyer’s impetuousness and disregard for consequences put the mission, and her life, in jeopardy. But to save a village, and the continent, from a despicable evil, she must choose between adhering to duty and breaking the rules.