The Chamber of Heart was the core sanctuary the Pantheon had built to protect Azeroth's world soul.
The chamber was connected to the two great world forges, which supplied it with a steady flow of energy to resist the Old Gods' corruption of the world soul.
Now, however, trouble plagued the Forge of Origination, and a major problem had arisen in the Forge of Wills as well. All of Ulduar had been corrupted by Yogg-Saron and was close to slipping out of control.
Without energy from the two great forges, the Chamber of Heart could only rely on the world soul's ability to heal herself to halt the Old Gods' corruption.
Unfortunately, the World Soul's ability to heal itself was limited. The chamber was now riddled with damage, and its defensive installations were failing one after another. Even the defense directives of the Titan Watchers left in the chamber, the Maiden of Vigilance, had been reformatted by the Old Gods, reducing her to a slave of the shadow will.
The Task Force successfully teleported into the chamber and found the hall ravaged, bloated masses of corrupted flesh and shadow tendrils everywhere.
The other members of the team did not know the truth about Azeroth's world soul, so their reactions went no deeper than what they could see.
Medivh was different. Seeing the Chamber of Heart on the verge of collapse, he felt not only shock but a growing fear.
As a child, Medivh had believed the enemy was the Gurubashi Trolls. Those savage tribes infesting the south of the kingdom had been his greatest foes.
After reaching adulthood, Medivh had believed Azeroth's greatest enemy was that damned black dragon. As long as he lived, the Alliance would never know peace.
By the time he reached middle age, the Burning Legion