Received from: automatically after clicking on one of four interactive items [Soldier's peak or Fortress]
Description: This is an easy quest and you'll have a chance to start it soon after arriving in [Soldier's peak]. Make sure to deal with all the skeletons before you start looking around. Explore the area to the west of the entrance to the tower and click on a large statue (DLC1, 4). You can read the first chapter of the story in your journal or you can focus only on finding other interactive objects.
A second interactive object is a book found in the last room in [Fortress - Ground floor] (DLC2, 6). Notice that before you pick it up you'll first have to deal with the main boss (Archivist). Read the second chapter.
A third interactive object is the rasperry jam found in [Fortress - First floor] (DLC2, 10). You can get to this item only if you've successfully defeated the boss (Rage demon) and dealt with the undead. Read the third chapter.
The last fourth item can be taken from a corpse found in [Avernus's tower] (DLC2, 17). This is the same room where you'll find Avernus, so you'll have to talk to him first before examining the body. Read the fourth chapter and return to [Fortress - First floor].
You'll be allowed to end this mission AFTER completing the main quest (after choosing an ally and successfully defending Sophia or Avernus). Remain in [Fortress - First floor] and inspect the area near the passageway leading to the ground floor. Clicking on Asturian's portrait (DLC2, 18) will uncover a chest. Open this object to collect Asturian's might (longsword), bolts, Shadow belt and gold.