Quick Walkthrough
- Receive a message from Captain Veleth.
- Listen to Arano's concerns, and speak with Geldis Sadri.
- Stake out the Ulen Ancestral Tomb.
- Report back to Arano and obtain the key to Severin Manor.
- Retrieve the evidence from the safe in Severin Manor.
- Travel through Ashfallow Citadel and destroy the conspirator.
- Return to Arano, and follow him to receive your reward from Councilor Morvayn.
 Detailed Walkthrough
 The Conspiracy
Once you have completed March of the Dead and The Final Descent, getting near Captain Veleth will make him apologize for bothering you once again and tell you that the Second Councilor of Raven Rock, Adril Arano, wants to speak with you as soon as possible. He then makes it quite clear how important this task is, and when you locate Arano he will wait for you at a secure location, specifically on the road leading to the Earth Stone.
When you talk to him he will get right to the point: "After everything you've already done for Raven Rock, I hate to ask for more but I can't risk Councilor Morvayn being killed." He will then elaborate: "The Ulen Family of House Hlaalu, a rival Great House, has placed a deathmark on the councilor's head." He then explains that Councilor Morvayn once ordered a member of House Hlaalu executed and that he suspects that there are hostile members of House Hlaalu living undercover in Raven Rock, but only that he has his suspicions and nothing else to go on. He then asks you to be his eyes and ears in Raven Rock and see what you can discover. He suggests you talk to local innkeeper of the Retching Netch, a Dunmer by the name of Geldis Sadri who has quite the reputation as a gossip. When you bid Arano farewell, he will mention that Geldis has been with 'us' for a long time, so you can trust him—despite his reputation.
From his spot behind the bar in the Retching Netch, Geldis will reveal that Arano has chased the Ulens for years, without any results whatsoever. He will then share his personal thoughts on what needs to be done: "If you want to catch those slippery slaughterfish, you need to let them come to you. There's an Ulen Ancestral Tomb near the Temple. Someone's been leaving ash yam offerings on the altar inside." Geldis reasons that whoever leaves ash yams in the tomb is bound to know something useful, though Arano and his team of Redoran Guards never had any luck when investigating the tomb. He then suggests that you, as an ordinary citizen, may have an advantage, and that you go to the tomb and wait around for that person to show up.
 An Unexpected Visitor
The Ulen Ancestral Tomb will be empty when you enter. Wait around for a bit and a visitor will show up and silently pay her respects near the central grave. If you sneak up close enough to the visitor, the quest log will update and tell you to report back to Arano. When you approach her openly, she will turn around and reveal herself to be Tilisu Severin, saying: "Oh, excuse me! I didn't realize there was anyone else here." Ask her what she is doing there and she will answer: "I presume the same thing you're doing... leaving an offering for the departed." When you confront her with the fact that she is not a member of the Ulen family, she will brush you off with: "Since there aren't any Ulens left on this island, I've taken it upon myself to leave the traditional offering in their stead." You can choose between three options as part of your investigation:
You're lying. You're from House Hlaalu!
"What kind of nonsense is that!? I'm simply honoring a fellow departed Dunmer, and you hurl baseless accusations at me?"
Tell me why you're really here.
"I'm simply honoring a fellow departed Dunmer."
I'll let you get to it then.
"Oh, no bother. We all have a right to be here."
While Tilisu Severin returns to her meditation, locate Adril Arano and tell him that Tilisu may be the culprit: "Tilisu? Are you sure?" He will then ask you for evidence: "If Tilisu's involved in any sort of plot to harm Councilor Morvayn, I'm going to need hard evidence to prove it." He will, however, refuse to search Severin Manor himself and will then ask you to do it: "If you're wrong about Tilisu, things would quickly go downhill around here and the real culprits might slip away. I can't afford for that to happen." He will then hand you the key to Severin Manor and give you free hands to find evidence by any means necessary: "If you have the evidence and it places your life in peril, I would expect you to do whatever you must to keep yourself alive. Here, this key should open the front door of the manor in case they've locked it. Good luck."
 The Ulen Matter
The Severin family is among the wealthiest families in Raven Rock and is in good standing, as they have shared their wealth with the community for years. Their mansion is located in the western part of town, on the way to the Earth Stone. There are two ways of dealing with the next task; either go into sneak mode or kick the door open. Regardless of the hour, Tilisu and Mirri Severin will be waiting inside, with weapons drawn. Your target is the safe downstairs, so either fight and kill them both and claim the key to the safe, or attempt to sneak down there without being detected. Head to the western bedroom and look for the Severin Family Safe that sits near a set of shelves to the left of the bed and either pick or unlock it. Inside is the revealing evidence, specifically The Ulen Matter, a letter written by family patriarch Vendil Severin, but signed by 'Vendil Ulen'. The letter clearly confirms Arano's suspicions, as it describes the plan to assassinate Councilor Lleril Morvayn as an act of revenge for the execution he ordered on a member of the Ulen family years back.
Return to Arano with the letter in hand, and tell him that the Severin family is behind the conspiracy: "Then we finally have them! All that remains now is chasing them down, and bringing them to justice." Judged from the hostility you encountered back in the mansion, telling Arano you doubt they will surrender easily will make him send some help to Ashfallow Citadel, a place mentioned in the letter: "I'm going to send two of the best Redoran Guard we have to take them down. I want you to assist them any way you can." Although you will be given two options, Arano will not take no for an answer, so you will have to travel to the fort and help the guards out.
 Ashfallow Citadel
According to Arano, Ashfallow Citadel has been abandoned for a long time, but when you arrive at the scene you will find the two Redoran Guards dead and be attacked by two Morag Tong assassins immediately. Dispose of them and enter the half-buried ruin. The interior is almost entirely covered in ash and the very first chamber hides an East Empire Company strongbox on some shelves. Kill the patrolling assassin and proceed down the spiral staircase. Loot the chest here, and find the narrow tunnel leading south. Before long, you will land in the private quarters, patrolled by two assassins. The path ahead is blocked by a set of metal bars. A bookshelf in the western room contains a safe with especially valuable loot. The eastern room contains an arcane enchanter and an alchemy lab, as well as a chain you need to pull to proceed.
If you didn't kill her earlier, Mirri Severin will be waiting for you along with several assassins, so fight them all and face two more sets of metal bars blocking the path. Head into the western room and jump over five bear traps and pull the chain. The other chain is located right next to the metal bars. Once they are removed, a third set of metal bars will block your path and the hallway will be plastered with pressure plates triggering spiked walls. Head into the western room and avoid more traps, then pull the two chains in there.
With the path clear, head into the final chamber where you will find Vendil Severin and, if you didn't kill her earlier, Tilisu, both of them clad in Morag Tong armor and accompanied by two assassins. Engage them and Vendil will shout: "For Vilur Ulen! Long live House Hlaalu!". When you've defeated him, he hints that he is Vilur's son with his last words, "I join you in death, father...". When all is said and done, loot Vendil's corpse for various goodies. Note that his chest key can't be used anywhere, but there is an unlocked chest at the back of the room. There is no quick escape route to Solstheim, so backtrack all the way to the entrance and return to Raven Rock.
 The Good News
Back in Raven Rock, an excited Adril Arano will ask you if you tracked down Vendil. When you assure him that Vendil is no longer a threat, he will be relieved despite the two deceased guards who were slain by the Morag Tong: "Damn it. I was hoping to protect our people by sending them, not end up with casualties. To think that Vendil would stoop so low as to hire those fetchers... I'm glad you killed him." He will then ask you to follow him and rush back to Morvayn Manor to deliver the good news himself. Follow him inside and witness a brief conversation between the two councilors:
Adril: "Excuse me, Councilor Morvayn? I have some wonderful news."
Lleril: "Adril... I haven't seen a smile on your face like that in a long time."
Adril: "This visitor has single-handedly dealt with a threat that could have ended your life. Vendil, Tilisu and Mirri Severin weren't who they appeared to be. I'm afraid they were here to avenge Vilur Ulen's death."
Lleril: "Vendil? But he's done so much for Raven Rock... how could this be possible?"
Adril: "They did it to gain our confidence, councilor. They had us all fooled. I should have been more vigilant. I'm sorry."
Lleril: "Don't say that. It's not your fault, old friend."
Councilor Morvayn will then ask you to step forward and receive his thanks: "What you've done for me... for all of Raven Rock... goes far beyond what I would have expected from a traveler to our town. For this, you have my deepest gratitude." He will then hand you the reward: "Now. I'm certain Adril was prepared to reward you appropriately for everything you've done. However, since a bit of coin hardly seems like enough... I've decided to provide something more substantial. Since the Severin family... or whoever they were...turned out to be criminals, their property is now forfeit. As Councilor, I hereby award you Severin Manor and everything contained within. You've earned your citizenship here, and I hope you'll consider staying with us as a member of our community." He will also hand you a leveled amount of gold, along with the right to live inside Severin Manor and claim all its contents. This unlocks an achievement and ends the quest.
One achievement is unlocked when you complete the quest:
- Raven Rock Owner (20 points/Bronze) — Own a house in Raven Rock
- You might want to wait on this quest until you've done It's All In The Taste. Both Mirri and Tilisu are potential customers, and it can be difficult to find ten others without having to wait a day and go back to the same people otherwise.
- When you speak to Adril after killing Vendil, even if Adril is in his usual seat right next to Morvayn, he will tell you he's taking you to see the Councilor and stand up before beginning the next conversation.
- If you speak to Tilisu Severin to learn her identity, the quest objective "Discover the identity of the tomb's visitor" may not complete.
- If Tilisu Severin is on a cliff above Raven Rock Mine during the objective "Discover the identity of the tomb's visitor," then she will act as though she is in the tomb. However the objective will not complete.
- To fix this simply use unrelenting force to knock her off the cliff, she should then walk to the tomb, then pickpocket her and the objective will update.
- If Mirri is slain in Severin Manor, her corpse may remain after the quest is complete.
 Quest Stages
- The following empty quest stages were omitted from the table: 0, 5.