Investigate House of Grief is a quest in Baldur’s Gate 3 that takes place during Act 3 in the Lower City. This quest also progresses the “Daughter of Darkness” quest to conclude Shadowheart’s story meaningfully. This place of insanity is controlled by a Drow, Viconia DeVir, and her Sharran disciples.
Before starting the quest, make sure you have recruited Shadowheart. You can also start this quest without Shadowheart by talking to a man named Arves on a bridge north of Elerrathin’s Home. We also recommend recruiting Minsc and Jaheira for some additional dialogues.
House of Grief location
The House of Grief is in the Lower City area of BG3. Its exact location is to the northwest at the coordinates (X: -260, Y: -9). From the Baldur’s Gate waypoint, simply travel west to find the House of Grief next to the water body. Climb the stairs to the left to access the house.
How to complete the Investigate House of Grief quest in BG3
Once inside the House of Grief, make your way to the Cloister of Sombre Embrace. As soon as you reach this place, Shadowheart will start having Deja vu. She will start remembering her past and ask you to continue the journey.
Talk to Sharran’s guards inside this place. They will tell you that the leader of their cult, Mother Superior, is waiting for us. Make your way to the location marked on the map (X: -359, Y: -1652). Upon finding Mother Superior inside House of Grief, a cutscene will start, and you will come to realize that she is none other than Viconia DeVir.
It is a very nice surprise for the veterans of the franchise, as Viconia is a companion from Baldur’s Gate 2. At this point, Viconia DeVir demands that you surrender Shadowheart to her and side with Sharran’s disciples. There are two options to choose from.
- If you surrender Shadowheart, Sharran disciples will join you for the Gather Allies’ quest, but you will lose Shadowheart permanently.
- If you refuse to hand over Shadowheart by saying “Never,” this will start a fight with Viconia DeVir on the spot.
How to defeat Mother Superior in BG3
Viconia DeVir is the final boss of House of Grief, and she is one of the most difficult end-game boss fights. She is susceptible to Lightning and Thunder attacks. Use these spells to deal as much damage as possible. She usually targets Shadowheart first. Make sure to protect and let Shadowheart rest so she can recover from deadly ailments.
Make sure to spam radiant damage via the Sunbeam spell, as all Sharran disciples are vulnerable to it. Let Shadowheart unleash all her fury in the form of Scared Flame and Guiding Bolt spells to deal fire and thunder damage to Mother Superior. Daylight is another useful spell to dispel the darkness created by Sharran’s disciples.
We recommend that you find and use Blessing of Selune to protect the party from Sharran’s disciples’ attacks. Having a druid in your party drastically increases your chances of victory, as you can use the summons to crowd-control Viconia DeVir. Once you defeat Viconia DeVir in BG3, Investigate the House of Grief quest will be completed.
You are free to allow Shadowheart to investigate Mother Superior or kill her at this point. We recommend the former option so Shadowheart can have a proper closure to her story. Once Viconia DeVir has been defeated, you will get Viconia’s Walking Fortress legendary shield as a reward.
