Gurkulons are a race of malevolent aliens who exist 7,000 years in the future. They are the nemeses of Grom DurnDang, as their primary goal seems to be to invade the planet Mars, which DurnDang defends. The Gurkulons’ appearance is unknown. Their fleet consists of three known types of ship: The fighter, the Missile ship, and the Mother ship. Together, the fleet is quite formidable but was nonetheless overcome by Grom Durndang’s small but bold ship. ("Quest for the Vengeful Book")