- For the achievement, see [The Descent into Madness].
The Descent into Madness is a subzone found in Ulduar that leads the way to the Prison of Yogg-Saron. General Vezax resides within here.
The stained-glass windows has been said to resemble the sha. During a developer chat, it was mentioned that they were not meant to be the sha and it was a "happy coincidence".