Liar’s Oath (The Legacy of Gird Series‪)‬

High heroic adventure from New York Times bestselling author Elizabeth Moon, author of The Deed of Paksenarrion

Although the king’s illegitimate son had promised he would never seek the throne, he breaks his oath and gets himself into so much trouble that his only hope lies in rescue by the greatest Paladin … who won’t be born for another 500 years.