Depending on the backstory Jair is the last of the Line of Kings, or the first of the new line. From the NES manual; As the last of the Line of Kings, only you possess the power to prevent the evil Warlock Lord from raising the Behemoth and unleashing it upon the land. Your quest lies within the Castle Shadowgate with its secret passageways, collapsing floors, and armed creatures. Your courage and wisdom will see youthrough... but a good sword might be helpful. From the Beyond Shadowgate description;