The Staff of Chaos (also known as the Balac-thurm) is a hugely powerful, magical artifact that was fashioned in the early First Era by Loreth. The staff was deemed too powerful and was hidden in the catacombs beneath the city of Mournhold. Jagar Tharn (Imperial Battlemage to Emperor Uriel Septim VII) disguised himself and tricked the Dunmer Queen Barenziah into helping him to retrieve the Staff of Chaos for him.
Tharn used the staff to transport Uriel Septim VII and his personal guard to a plane of oblivion, then used a spell to make him look like Uriel Septim, next broke the Staff of Chaos into eight pieces and hid the pieces all around Tamriel. The Eternal Champion had to go and collect all eight pieces and use the staff on Tharn to defeat him and bring back the Emperor and his personal guard and end the Imperial Simulacrum.
The eight pieces are in:
After the Eternal Champion touched the Jewel of Fire with the Staff of Chaos the magical items disappeared, while at the same time Uriel Septim VII and his guard were brought back to Mundus. Most people believe the Staff was either somehow destroyed or banished into Oblivion, though both ideas were considered impossible before the Simulacrum.
- The Elder Scrolls: Arena (First appearance)
- Final Lesson
- Real Barenziah