During the reign of the Ancient Ones, Sivar himself appeared in a vision to the First Prophetess of Kilrah. His words are recorded in the Tome of Sivar.
"There shall come a time when one who has the heart of a Kilrathi, but is not Kilrathi born, shall rain cleansing fire down upon us. And Kn'Thrak, a time of great darkness, shall embrace us. Death itself shall pour forth, obscuring the stars in a veil of darkness. Theirs is the claw that tears flesh from bone. Theirs is the poisoned fang. Their number shall rend the universe barren and crush the breath from our clans. We shall be bathed in our own blood and rotted flesh shall be our fare. With a deafening thunder shall the dark age begin."