A true veteran

The knights of antiquity fought dragons to gain fame. I want to offer you a similar test. Only your dragons will be as many as three, and only one of them is a real fire-breathing lizard. The great golden dragon lives among the forests and swamps of the Aegean. Challenge him to a fight and win. Then go to the Tower of Chaos and find the Illusionary. Put an end to his misdeeds. After that, go back to Theo's hump. Somewhere in its labyrinths, a Vicious Researcher wanders. Destroy this ancient nightmare spawn. That's all. If you are a true veteran, you will somehow cope with the monsters.