The Sword of the King — Barbara Lindsley Galloway

On the eve of his wedding to Elaina Tenderthorn, Argrace Thinblade is given an ancient book by his grandfather--The Book of the Sword--which chronicles the search for the lost sword of King Fairgrace Thinblade centuries before: a sword of such power that it could vanquish the evil that holds a kingdom in bondage, and puts the wielder on the throne. Even as Argrace realizes that the ancient king was his own forebear, a powerful desire grows within him to find the sword and face the evil that kills anyone who seeks to claim it.