Acquisition
- Near Alftand, in the hidden treasure chest shown on Treasure Map XIII, on the cliff to the right of the lower entrance of the Alftand Ruined Tower. It does not appear until the treasure map has been obtained.
- Aetherium Forge underneath the Ruins of Bthalft, after crossing the first rock bridge, on a platform beneath a Dwemer head.
- Alftand Animonculory, before you must jump down to Yag gra-Gortwog, in a room behind an apprentice-locked door, on the table.
- Debate Hall in Blackreach, near a skeleton on a table made of pipes on the second level to the east, covered by the book Et'Ada, Eight Aedra, Eat the Dreamer.
- Fahlbtharz Grand Hall, in the final room, on the table where the Visage of Mzund is found.
- Irkngthand Grand Cavern, in the room with Mercer Frey's mirror writing, on the floor next to the empty chest.
- Nchuand-Zel Control, on the table near the lever that opens the last gate.
- Randomly found by the guild members of the Explorer's Society if you send them out on excavations.
Location
Near Alftand
Location near Alftand
Location on local map
Alftand on map
Aetherium Forge
Location in Aetherium Forge
Location seen from afar
Aetherium Forge local map
Ruins of Bthalft on map
Alftand Animonculory
Location in Alftand Animonculory
Location seen from afar
Alftand Animonculory local map
Alftand on map
Blackreach Debate Hall
Location in Blackreach Debate Hall
Location seen from afar
Blackreach Debate Hall local map
Entrances to Blackreach
Fahlbtharz Grand Hall
Location in Fahlbtharz Grand Hall
Location seen from afar
Fahlbtharz Grand Hall local map
Fahlbtharz on map
Irkngthand Grand Cavern
Location in Irkngthand Grand Cavern
Location seen from afar
Irkngthand Grand Cavern local map
Irkngthand on map
Nchuand-Zel Control Room
Location in Nchuand-Zel Control Room
Location seen from afar
Nchuand-Zel Control Room local map
Nchuand-Zel on map