|Quests||The Temple at Senntisten|
Zaros was an almighty God that ruled the lands long ago. He came to Gielinor during the Second Age. The Mahjarrat decided to follow him instead of their former god Icthlarin, a member of the Menaphite Pantheon. This was due to Zaros being much more powerful.
Saradominists such as Lennissa have claimed that:
"Evil will always breed more evil, and will never be satisfied with what it has. The Empty Lord chose to ally himself with the dark creatures of this world, fully aware that their own natures would cause them to rally against his rule, and take every opportunity they could to betray him."
However, it does not prove that he was a good or an evil god and is normally called the "Unknown Power" or "The Empty Lord". Everyone had a different view about Zaros. Zamorak was one of Zaros' generals. Zamorak's hunger for power lead to Zaros's downfall. As a result, Zaros was banished from the realm of Gielinor, and all who were loyal to Zaros either decided to follow Zamorak or struggled to protect Zaros' former empire. The only known followers of Zaros today are some desert bandits, some Mahjarrat, and all the creatures that lurk in the Ancient Prison. Zamorak still fears that he might come back, as shown in the God Letters.
In "The Temple at Senntisten", the player assists the Mahjarrat Azzanadra in his quest to create a portal, through which he can speak with Zaros. As contact has already been reastablished with the Empty Lord, many believe his return is unevitable. Although banished, Zaros can still influence Gielnor in many ways, as seen at the end of Temple at Senntisten, when his powers destroy a statue of Zamorak.
Zaros, with many humans, Mahjarrat, vampyres, dragon riders, demons, and other races at his disposal, soon established an unrivalled empire in eastern Gielinor. Nearly all of modern-day Misthalin, Asgarnia, northern Morytania, and the Wilderness soon came under his rule. The Mahjarrat, his greatest soldiers, reveled in the bloodshed.
The Zarosian Kingdom was one of great prosperity, but the Mahjarrat were not content. Soon they became divided and began to work towards their own ends. The most significant of these was Zamorak. Zamorak was amongst the strongest beings to ever walk Gielinor. He earned himself the nickname "The Scourge of the Battlefield", ruthlessly proving his power in combat countless times. This earned him favour with Zaros, who quickly gave him the rank of general. Yet, despite this, Zamorak was not willing to serve Zaros, and even as his kingdom expanded from Senntisten, Zamorak plotted against him.
The Staff of Armadyl eventually fell into the hands of Zamorak. With the assistance of individuals such as Zemouregal, Lucien, Lord Drakan, Hazeel, Viggora, and Enakhra, Zamorak devised a way to defeat the Empty Lord.
A great battle raged in Zaros' greatest stronghold. Zamorak, backed by nearly all of the Mahjarrat, attacked Zaros in the throne room. While Zamorak fought, his allies ensured that none of Zaros' bodyguards would interfere. By pure luck, Zamorak impaled Zaros with the Staff. However, Zaros was still a god, and while choking Zamorak, miraculously tripped. The staff impaled both Zaros and Zamorak, and, acting like a lightning rod, transferred Zaros' power into Zamorak. Zaros faded from existence and Gielinor's plane, while Zamorak seemed to become even more real. Now a god, and infused with enough power to rival the other deities of Gielinor, Zamorak went on to conquer that which Zaros had.