This is easily the longest and most fraught part of the quest as both Alftand and Blackreach are extensive and certainly not lacking in Falmer and other dangerous foes. This transcription can only be done at a Dwemer Oculory located within the Tower of Mzark in Blackreach, and the only way to reach the tower is go through Alftand, then Blackreach. To do so, Septimus must use an Elder Scroll which requires a lexicon to be transcribed.Transcribe the Lexicon
When the Dragonborn finds Septimus Signus’s Outpost, the mad scholar living there asks for help opening the strange Dwemer box inside. This step may be skipped entirely.Find Septimus Signus
This quest begins by reading the book Ruminations on the Elder Scrolls.Ask Urag about the insane book A Centurion-like head hung above the tower doors, unnerving Thaddeus.PrerequisiteRequired ItemsTypeSideFactionQuest GiverSeptimus SignusLocationSeptimus Signus’s OutpostAlftandTower of MzarkRewardsOghma InfiniumAlt RewardsRequired LevelFollowed byIDDA04 Quest ObjectivesWalkthrough The river running to the group’s left pooled underneath the tower, built at the precipice of a waterfall. I’m not 100% sure why this works, but it does! - Check out the NimsGaming Livestreams! Up ahead was a tower, so tall it touched the cavern ceiling.
