Dyus Dyus , also known as Dyus of Mytheria , is an Imperial crusader who will help the Hero of Kvatch assume the Throne of Madness in the quest " Symbols of Office . " Background . Dyus was the former keeper of the Great Library of Jyggalag as well as Jyggalag ' s trusted Chamberlain . Within the library was all the knowledge of creation , consisting of logical predictions of the actions , events and deeds of all sentient lifeforms ( creature , mortal and Daedra ) in existence , that previously existed , and would ever exist , using the logical formulae found within the library . When Sheogorath was born from Jyggalag ' s curse , and discovered the Great Library , he had the knowledge burned and the library destroyed , seeing it as an abomination as he viewed that personal choice surpassed logical prediction . Sheogorath destroyed everything except for Dyus , unable to bring himself to destroy the knowledge he possessed . To prevent others from locating him and using his knowledge with ill intent , Sheogorath imprisoned Dyus inside Knifepoint Hollow and granted him immortality , making sure that he wouldn ' t die within his prison . Interactions . Symbols of Office . Haskill recommends that the Hero see Dyus at Knifepoint Hollow . Dyus will tell that the Eye of Ciirta and a branch from the Tree of Shades are needed . Once both items have been collected , return to Dyus . He will create the unfinished Staff . He then says to travel to the Tree of Madness in Sheogorath ' s throne room and tap the Tree ' s power to complete the staff . Personality . Dyus portrays himself as a reserved individual , whose immortality and eternal imprisonment are of no bother . To him , individuality is an illusion , and he considers his own life and existence is just about as important , in the long run , as the entire history of a stone . Despite believing this , he will still answer questions about his past . He also considers space and time as artificial concepts , used by men of baser intellect to make sense of the world , and states that only a few fortunate minds can see past this convention . Due to his knowledge of Jyggalag ' s logical formulae , he is said to possess knowledge of every event to ever occur . If asked about him , Haskill will mention that Dyus knows things that even the Daedric Princes do not know , making him a powerful individual . However , due to his determinism , he considers these events and their occurrence as unchangeable and certain , and does not attempt to interfere . Those who believe in personal choice , however , such as Sheogorath and Haskill , consider this idea " debatable . " He also does not seem to discriminate as to who he will give knowledge to , as he helped the Hero gain the means to defeat his old master , despite predicting certain failure . Despite his determinism , he incorrectly predicted that the Hero would not be able to acquire the ingredients for the Staff of Sheogorath . When he discovered this , he was somewhat surprised , and expressed that he was now uncertain of the Hero ' s fate , though he immediately attributed this to an error in deduction on his part . After completing the questline and returning to him , he will state that he loathes the concept of personal choice , as it makes things imprecise . When asked about his imprisonment , he states that he knows when the new Sheogorath intends to finally free him , and asks for the Hero to leave them be .