The Lone Dragon Knight (The Dragon Knight Series Book 1)

His memories only go as far back to his days slaying starved beasts and mad men in a dark pit, but soon after he’s sold to a criminal syndicate, Mercer gains a chance to avenge the life he lost. Helping him take advantage of the opportunity is an enchanted longsword he finds deep within a mountain, whose power links to that of an ancient dragon. If Mercer hopes to achieve retribution against his formidable foes, he must become something not seen in centuries—a dragon knight.