The Sunless Hollow is an unmarked location that appears northwest of Brothers of Strife Wayshrine and north of Armature's Upheaval. It is a small volcanic cave with parts of daedric ruins that serves as a hideout for Blackguards and a storehouse for Margus Derius.
Concordia Mercius asks to retrieve the stolen relics from this location.
- The Journal of Margus Derius – West part of the lower northern cave
- Argonian Charm Necklace
- Xal-Toh Tablet