The Watcher in the Walls is a quest available in The Elder Scrolls Online: Imperial City.
"I must travel to the Imperial Arena, enter the Daedra's bloody martial contest, and defeat all comers."
- Read the Bloody Scroll.
- Defeat the Devourer, Uzzai, Migoruz and Dredaza the Ringmaster in the Arena.
- Talk to The Rat in his hideout.
- Report to the Drake of Blades.