Oblivion:Sins of the Father

Quick Walkthrough
# Talk to Fathis Ules at the Oak and Crosier Inn in Chorrol.
# Go to the Redguard Valley Cave.
# Defeat the ogres and take the Honorblade of Chorrol.
# Return the blade to Laythe Wavrick or Fathis Ules.

Detailed Walkthrough
Talking to Fathis Ules
Approximately two days after helping the Jemane brothers in Legacy Lost you will be contacted by a Dunmer thief named Fathis Ules. You need to be in Chorrol for the quest to be initiated.

Fathis explains that the Jemane brothers' father, Albert Jemane, once worked for him as a professional thief. He was a good employee for many years, but his greed overcame him and he disappeared with the last object he was told to steal. Fathis thinks that this object (he won't tell you what it is) has been taken by the ogres that until recently had overrun the farm. He shows you how to get to their cave.

Raiding the Ogres
Go to the Redguard Valley Cave, which has been overtaken by Redguard Valley Ogres. You need to locate and kill the Ogre Chieftain; you can either kill or avoid the rest of the ogres in the cave. On the corpse of the Ogre Chieftain you will find the Honorblade of Chorrol, the item Ules wants. Your diary suggests to you that perhaps the blade should instead be returned to Castle Chorrol. You can decide which option to take:
Keep the sword for yourself (which prevents the quest from being finished, or the quest item flag on the sword being cleared; see below for a post-quest theft solution).
Give the blade back to the people of Chorrol. Find Laythe Wavrick, Herald to the Countess of Chorrol in the castle. He thanks you profusely and gives you the Escutcheon of Chorrol in return.
Return it to Fathis Ules for a leveled reward in gold.

Closing the Quest
To completely finish the quest, you need to return to Weatherleah and talk to the brothers one last time. The brothers' reaction will depend upon what you did with the sword.
If you gave it back to the people, the brothers admit that their father was the original thief. To make amends for their father's actions, they will give you four grand soul gems (all filled with common souls). Their dispositions towards you increase by 20 points, and you gain one Fame point for completing the quest.
If you gave the sword to Fathis, the brothers refuse to believe that their father was a thief, and resent your accusations. Their dispositions towards you decrease by 30 points, and you gain one Infamy point for completing the quest.
After completing this quest, the Jemanes will have cleaned up Weatherleah, furnishing the interior and planting a garden out front. Reynald will also be noticeably more sober, and will speak as clearly and coherently as his brother.

Notes
The Honorblade of Chorrol is a fairly powerful unenchanted blade that can be obtained quite early in the game, as there are no level requirements on the quests. Its base damage of 23 is only lower than the generic Daedric longsword (24), and a few unique swords (with the highest being Umbra at 28). 
If you return the blade to Laythe, it can be obtained from him for a short while, or later from the Countess, via pickpocketing. To get it from the countess, this must be done when she is asleep or getting up after falling to the ground (due to an attack or paralysis), as she equips it when she is awake.  This is best done after closing the quest with the Jemanes (see Bugs, below, about item quest status). It is easiest if you have the Canvas the Castle quest open, because you will receive a key that lets you into private parts of the castle and it won't be considered trespassing.

Bugs
 
 
 
 

Journal Entries