Few side quests in Skyrim hit that sweet spot of weird, rewarding, and slightly inconvenient quite like Discerning the Transmundane. It’s the one where a half-mad scholar living in an ice cave asks the Dragonborn to bleed five different elves so he can crack open a Dwemer puzzle box. Standard Tuesday in Tamriel, really. The payoff is the Oghma Infinium, a Daedric artifact tied to Hermaeus Mora that hands out free skill levels. Here’s the full walkthrough, the glitch status in 2026, and the bugs worth knowing about before diving in.
Key Takeaways
- Discerning the Transmundane unlocks after completing Elder Knowledge, and meeting Septimus Signus at his iceberg outpost north of Winterhold officially starts the quest.
- The quest requires collecting blood from five Mer races using an Essence Extractor, with Falmer blood being the easiest to obtain from corpses in Dwemer ruins like Alftand.
- The Oghma Infinium reward grants +5 to six skills in one of three paths (Might, Shadow, or Magic), with the glitch allowing infinite reads patched on modern consoles but still available via mods on PC.
- Common bugs in Discerning the Transmundane include Septimus not accepting the Lexicon and the Essence Extractor disappearing, both fixable with console commands or re-entry into the outpost.
- The optimal strategy is to save the Oghma Infinium read until skills approach level cap, maximizing the +5 skill boost’s impact on character progression.
- This Daedric quest pairs well with other Skyrim questlines and Dragonborn DLC content tied to Hermaeus Mora’s storyline.
How to Start the Discerning the Transmundane Quest
Discerning the Transmundane only unlocks after the main story quest Elder Knowledge, which sends the Dragonborn to find an Elder Scroll. That means players need to be deep enough into the main questline to have spoken with Arngeir at High Hrothgar and learned about the Scroll’s location.
During Elder Knowledge, Arngeir points toward Septimus Signus, an Imperial scholar obsessed with Dwemer artifacts. The moment the Dragonborn meets him inside his iceberg outpost north of Winterhold, Discerning the Transmundane officially begins. It runs parallel to the main story, so there’s no need to finish Elder Knowledge first, players just need to trigger the conversation.
It’s worth pairing this run with other Skyrim Daedric Princes questlines, since Hermaeus Mora’s storyline ties directly into Dragonborn DLC content later on.
Locating Septimus Signus’s Outpost and Retrieving the Lexicon
Septimus Signus’s Outpost sits on a small ice floe due north of the College of Winterhold. The fastest route is to fast-travel to the College, head down to the docks, and follow the coastline north. Expect horkers and the occasional ice wraith on the way.
Inside, Septimus hands over a blank Lexicon (called the Lexicon Receptacle) and points the Dragonborn toward Alftand, a Dwemer ruin southwest of Winterhold. Alftand is also the main-quest path to Blackreach, so this trip pulls double duty.
Key steps inside Alftand and Blackreach:
- Clear through Alftand’s Falmer-infested ruins
- Defeat the two Dwarven Centurions guarding the Tower of Mzark
- Use the Lexicon on the central control pedestal in Mzark
- Operate the buttons in this order: top button, then the lower button until the cube rises, then the bottom-left and bottom-right buttons to retrieve the Elder Scroll and inscribe the Lexicon
The puzzle isn’t tricky, but the Skyrim Dragonsoul progression hint applies here too, the dungeon hands out a free dragon shout word at Alftand’s exterior wall.
Extracting Blood From the Five Elven Races
After returning the inscribed Lexicon, Septimus reveals the catch: the lockbox needs blood from all five Mer races. He hands over an Essence Extractor and lets the Dragonborn loose. The five required samples are:
- Altmer (High Elf)
- Bosmer (Wood Elf)
- Dunmer (Dark Elf)
- Falmer (Snow Elf)
- Orsimer (Orc)
Falmer blood is the easiest, any Falmer corpse from Alftand or a Dwemer ruin works. The other four require killing a named or generic NPC of each race. Common low-stakes targets include bandit Altmer in Northwatch Keep, Dunmer in Windhelm’s Gray Quarter (though killing citizens has consequences), Orsimer in the various strongholds (with caution), and Bosmer caravan members or bandits scattered across Whiterun Hold.
Detailed walkthroughs on sites like Twinfinite’s quest coverage list specific named NPCs whose deaths don’t trigger bounties, which is the cleanest route for low-level characters. Use the Essence Extractor on the corpse, and the sample auto-fills.
Opening the Dwemer Lockbox and Reading the Oghma Infinium
Back at the outpost, Septimus uses the blood mixture on the Dwemer cube. Cue cutscene, the cube opens, and out floats the Oghma Infinium, a tome written by the Ageless One himself. Hermaeus Mora then promptly betrays Septimus (he dies on the spot), leaving the Dragonborn alone with the book.
Reading it opens a menu with three paths:
- Path of Might, +5 to Heavy Armor, Block, Two-Handed, One-Handed, Smithing, Archery
- Path of Shadow, +5 to Light Armor, Sneak, Lockpicking, Pickpocket, Speech, Alchemy
- Path of Magic, +5 to Illusion, Conjuration, Destruction, Restoration, Alteration, Enchanting
Pick whichever fits the current build. A stealth archer running through a best Skyrim armor loadout grabs Shadow, a battlemage in Skyrim mage armor takes Magic, and so on.
Using the Oghma Infinium Glitch and Skill Boost Strategy
The infamous Oghma Infinium bookshelf glitch worked in Legendary Edition but was patched out of Special Edition and Anniversary Edition on PC, PS5, and Xbox Series X/S. The original exploit involved placing the book on a bookshelf, taking it back, and reading it repeatedly for infinite +5 boosts.
On current-gen consoles in 2026, the glitch is dead in the vanilla game. PC players can still replicate it via mods on Nexus Mods, or simply use console commands. The smarter legit play is to save the Oghma Infinium until skills are near level cap, since the +5 stacks on top of whatever the current level is, maximizing character XP gain.
Common Bugs, Fixes, and Troubleshooting Tips
Discerning the Transmundane is one of Skyrim’s buggier skyrim quests, even in the 2026 Anniversary Edition build. The most common issues:
- Septimus won’t accept the Lexicon: Re-enter the outpost or wait 24 in-game hours. If still broken, use the console command
setstage MS02 50on PC. - Essence Extractor missing from inventory: Sometimes it’s dropped during fast travel. Console users can re-add it with
player.additem 0003BA70 1. - Falmer blood not registering: Only certain Falmer variants count. Try a fresh Falmer in a different Dwemer ruin like Mzinchaleft or Irkngthand.
- Oghma Infinium disappearing: After reading, the book is supposed to vanish. If it didn’t, that’s actually the old glitch trigger, but post-patch it just sits useless in the inventory.
For stubborn quest stalls, the modding community on Rock Paper Shotgun’s coverage and dedicated unofficial patches consistently fix the worst offenders. Console players without mod access should keep a hard save before starting each stage. Pairing this quest with other long Skyrim questlines like the College of Winterhold or Skyrim companions quests is fine, the triggers don’t conflict, but separate save slots are still a smart habit.
Conclusion
Discerning the Transmundane remains one of Skyrim’s most rewarding Daedric detours, even with the glitch patched on modern platforms. Timing the Oghma Infinium read for maximum XP, knowing which Mer to bleed, and saving before each stage are the difference between a smooth run and a soft-locked save. Hermaeus Mora doesn’t hand out gifts twice, so make the +5 count.
