The Dragon's Tooth - J. L. Davis - Bog

A family bent on revenge travels to a foreign land to seek the aid of a dragon but discover that a knight has slain it and is still trapped beneath the carcass. In exchange for their help, Sir Ekinroy vows to confront the man who murdered their loved ones. Now he must not only find a way to slay a well-protected foe but also track down his wayward manservant who stole the magical dragon's tooth, for only by presenting the tooth to his king will he again be accepted among his people.