As the politics and rivalries of the seven human nations waxed and waned, the line of Guardians kept its constant vigil against chaos. There were many Guardians over the years, but only one ever held the magical powers of Tirisfal at any given time. One of the last Guardians of the age distinguished herself as a mighty warrior against the shadow.

Aegwynn, a fiery human girl, won the approbation of the Order and was given the mantle of Guardianship. Aegwynn vigorously worked to hunt down and eradicate demons wherever she found them, but she often questioned the authority of the male-dominated Council of Tirisfal.

She believed that the ancient elves and the elderly men who presided over the council were too rigid in their thinking and not farsighted enough to put a decisive end to the conflict against chaos. Impatient with lengthy discussion and debate, she yearned to prove herself worthy to her peers and superiors, and as a result frequently chose valor over wisdom in crucial situations.

As her mastery over the cosmic power of Tirisfal grew, Aegwynn became aware of a number of powerful demons that stalked the icy northern continent of Northrend. Traveling to the distant north, Aegwynn tracked the demons into the mountains. There, she found that the demons were hunting one of the last surviving dragonflights and draining the ancient creatures of their innate magic.

The mighty dragons, who had fled from the ever-advancing march of mortal societies, found themselves too evenly matched against the dark magics of the Legion. Aegwynn confronted the demons, and with help from the noble dragons, eradicated them. Yet, as the last demon was banished from the mortal world, a great storm erupted throughout the north.

An enormous dark visage appeared in the sky above Northrend. Sargeras, the demon king and lord of the Burning Legion, appeared before Aegwynn and bristled with hellish energy. He informed the young Guardian that the time of Tirisfal was about to come to an end and that the world would soon bow before the onslaught of the Legion.

The proud Aegwynn, believing herself to be a match for the menacing god, unleashed her powers against Sargeras' avatar. With disconcerting ease, Aegwynn battered the demonlord with her powers and succeeded in killing his physical shell. Fearing that Sargeras' spirit would linger on, Aegwynn locked the ruined husk of his body within one of the ancient halls of Kalimdor that had been blasted to the bottom of the sea when the Well of Eternity collapsed.

Aegwynn would never know that she had done exactly as Sargeras had planned. She had inadvertently sealed the fate of the mortal world, for Sargeras, at the time of his corporeal death, had transferred his spirit into Aegwynn's weakened body. Unbeknownst to the young Guardian, Sargeras would remain cloaked within the darkest recesses of her soul for many long years.