The Elder Scrolls IV: Knights of the Nine — the first official large addition to the game The Elder Scrolls IV: Oblivion.
By Cyrodiil sweep blasphemous rumors about an attack on Chapel of Dibella in Anvil. Send back the protagonist meets at the church of the Prophet, which broadcasts the revival terrible Ayleid King Umaril Neoperennogo, decided to take revenge on the gods of the people who captured his country. But it can only win finding relics Nine ... If the prophet deems worthy hero, then gives him a map of Cyrodiil Road Sanctuaries (not very accurate. The exact location of the sanctuaries have to look for yourself). After receiving the card protagonist begins pilgrimage, during which you can not commit crimes (Or have to start Pilgrimage first). The sanctuary can be visited in any order. After visiting the shrine last hero sees a vision in which he will be the Divine Crusader, Pelinal Whitestrake, and point to the location of the first-Relics of the Crusader Helmet.

After finding a helmet and a special ring (located on the body of a person in the tomb), the protagonist goes to the Priory of the Nine-temple, where once lived the legendary Knights of the Nine. Inside the Priory he finds the tomb in which lie the Knights and stands for the Holy Armor mannequin on which the Crusader Breastplate. When approaching it appears magical shield and the spirits of the Knights. After the victory over the spirits they tell the hero location remaining relics. (Mace of the Crusader can be obtained only after receiving Sapogov Crusader sword-and after all the relics.) While wandering in search of relics, the protagonist to solve a variety of puzzles. Once he finds all of the equipment, it becomes Holy Crusaders then begins preparation for the great battle with the immortal enemy ...

What's new:
New armor and weapons that give extraordinary abilities. But you can wear this armor only if not sin (not to kill ordinary citizens or guards, do not steal, etc.)
An exciting new quest with a lot of secrets and mysteries. Opportunity to recruit people into the Order of the Crusaders. Battle with Umarilom in the world of living and of the dead.