Who is Dragon from Heir Apparent and what is their importance?

Uldemar discovers the dragon when using his scrying glass. The dragon is living in a cave in the southern province on the Old Hag Mountaintop. Dragons like gold, and this dragon was distracted by the crown endowed with the Midas spell, allowing it's owner to change one thing into gold simply by touching it. Although the crown can only be used once, the dragon is satisfied with it and leaves the villagers alone. Xenos's father compares dragons to cats, they sleep in starts and fits at all hours of the day and night, so there is no time that is better than another to approach one.