The ruling council known as the Triarch believed that an external foe would unify their species and their enmity with the Old Ones led to them declaring war upon this ancient race. At this time, the Necrontyr empire was suffering from the Wars of Secession with the various Dynasties battling one another. This kindled a burning hatred within the Necrontyr, whose harsh sun cursed them with diseased bodies and difficulties in colonising the stars. The Necrontyr are known to have petitioned the Old Ones for the secret of eternal life but they refused. During this encounter, the ultra-intelligent races of mystics known as the Old Ones were seen to have swiftly colonised other worlds with far greater ease and had an immense longevity to the point of immortality. Īs the Old Ones passed through the cosmos, a number of younger and fiercer races developed within their wake, including the Necrontyr, who struggled in their colonisation of other worlds. This was a conflict that the C'tan lost and in the aftermath they went into hiding in order to avoid the Old Ones' wrath. According to the Deceiver, the Old Ones once waged a war against the race of beings known as the C'tan. They believed that all life was useful and they are known to have brought about the rise of numerous new species and impregnated thousands of worlds which they made their own. Such was their advanced science that they had the capacity to cross vast tracts of space with a single step by way of Webway portals and through such means they managed to spread their spawn to many other places. At some unknown point, they crafted the Webway to serve as a conduit through which they could travel to far-flung worlds without suffering from the tides of the Warp. It was their understanding of the universe that allowed them to manipulate alternate dimensions and it was known that they undertook great works of psychic engineering.
The Old Ones are said to have had a slow, cold-blooded wisdom, studying the stars and raising astrology and astronomy to an arcane science.