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The Elder Scrolls IV Oblivion Remastered

Ritual of Dementia Walkthrough

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The Elder Scrolls IV Oblivion - Ritual of Dementia
This is a Ritual of Dementia walkthrough for the Shivering Isles expansion in The Elder Scrolls IV Oblivion Remastered. Learn how to complete Ritual of Dementia and its rewards here!

◀ Previous Guide Next Guide ▶
Ritual of Accession Retaking the Fringe

List of Contents

Ritual of Dementia Walkthrough

1 Choose Syl
Choose Syl
During the Ritual of Accession, you will have to choose between replacing Syl or Thadon by killing them. Choose Syl to do the Ritual of Dementia quest which will lock you out of Ritual of Mania.
2 Talk to Kithlan
Kithlan
Go to the New Sheoth Palace and go inside. Go inside the House of Dementia and speak with Kithlan. Persuade him and raise his disposition to atleast 80 points so he'll agree to help. He should give you a key that will let you enter any door within Dementia Wing of the Palace.

Note that if Kithlan isn't in the room, wait for hours until it is morning so that he will spawn.
3 Talk to Anya
Anya
Talk to Anya who is in the same room as Kithlan and raise her point by at least 80 points by persuading her so she will be eager to help. She will distract the Seducer guards inside the Dementia Wing.
4 Get into Syl's Quarters
Get into Syl
Use the key to enter the Private Gardens. Follow Anya and get into the Duchess' Quarters. Once inside you will see Syl's body on the bed and Kithlan will tell you that the body is an impersonator.

You will learn that Syl has used her escape tunnel to flee from her quarters.
5 Activate the Bust of Sheogorath
Bust of Sheogorath
Exit the Duchess Quarters and defeat the guards outside. After defeating them, interact with the Bust of Sheogorath at the right side of the quarters door which will give you access to the escape tunnel Syl used.
6 Navigate through the Projectile Room
Button on the Wall
Inside the chamber, open the Metal Door then go straight then go to the east path then to the south then immediately to the east again and then north to see a button on the wall that will shut down the projectiles.

You can also check your map to see the path. Proceed forward to see another Metal Door that will lead you to the next room.
7 Go to the Depths
Depths
In the next room, there will be three Dark Seducers waiting so either defeat them or go invisible to get past them.

Go straight and then to the right to get into another room. You will be ambushed by Dark Seducers and you need to defeat them. After defeating them, just follow the path until you see the door to the Depths.
8 Locate Syl
Syl
Follow the path forward to get into a room with Dark Seducers. There will be a button to the left of the room in order to proceed. Follow the path forward again to see another button that will open the door.

Keep following the path, go through the hall with the gargoyles and defeat the Dark Seducers on the way. You will eventually get to a big hall with many pillars with a room to the right where Syl is located.
9 Kill Syl and Take Her Heart
Syl
Defeat Syl and her guards inside the room and loot her heart from her body.
10 Go to the Altar of Arden-Sul at Sacellum
Altar of Arden-Sul
Backtrack to where you came from and go outside the New Sheoth Palace. Follow the objective marker on your compass which will lead you to Sacellum Arden-Sul.
11 Place Syl's Heart on the Altar
Thadon
Activate the Altar of Arden-Sul to place Syl's Heart in it. You will become the Duke or Duchess of Dementia and Sheogorath will congratulate you when you talk to him.

However, Thadon will come to the altar and will confront you and Sheogorath about Syl's passing. Thadon will resign from his position and will instead work for Jyggalag as the Priest of Order.
12 Talk to Sheogorath Again
Sheogorath
Talk to Sheogorath again and he will tell you why he let Thadon go. He will tell you that you can now summon Dark Seducers and he will also grant you the Ring of Lordship as a symbol of your new position.

He will also tell you that the Fringe has been attacked and you will need to retake it. This will finish the quest and start the next quest, Retaking the Fringe.

Oblivion Remastered Related Guides

TES IV Oblivion Shivering Isles Quests Partial Banner

List of All Shivering Isles Quests

All Shivering Isles Main Quests

1 A Door in Niben Bay
2 Through the Fringe of Madness
3 A Better Mousetrap
4 Baiting the Trap
5 Understanding Madness
6 Addiction
7 The Lady of Paranoia
8 The Cold Flame of Agnon
9 Ritual of Accession
10 Ritual of Mania
11 Ritual of Dementia
12 Retaking the Fringe
13 Rebuilding the Gatekeeper
14 The Helpless Army
15 Symbols of Office
16 The Roots of Madness
17 The End of Order
18 The Prince of Madness

Shivering Isles Walkthrough

All Shivering Isles Side Quests

The Antipodean Hammer Falling Awake Work is Never Done
The Fork of Horripilation Brithaur The Coming Storm
Final Resting A Liquid Solution The Museum of Oddities
Ushnar's Terror Everything In Its Place Ghosts of Vitharn
The Great Divide Taxonomy of Obsession To Help a Hero

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