Shadow over Driftwood is a Quest in Divinity: Original Sin II. Short description goes here.
Lohar, a gang boss at the Undertavern, asks you to search Mordus's house. His house is the one west of the tavern. Tell the dwarf sleeping there you were sent by Lohar and she will let you open the hatch beneath her. If you attempt to convince her with any other form of dialogue, she will simply turn you away.
At the basement of Mordus's house, you will notice two dwarfs trapped in the other room. There's a secret handle located on the column next to the staircase. Walk close to the stairs and you will find it. After you activate it and open the stone door, the two trapped dwarfs will leave and allow you to scavenge this area.
If you walk to the lower end of this room, the stone door will shut again, and you will not be able to open it until you read the instructions for how to do so. You will then need to move some crates to find a Row of books hidden behind the chest. Inside the Row of books (besides some loot) you'll find:
The instruction to open the door, which will reveal that there is a button behind the shrine; this will open up a new dialogue option for you, allowing you to escape the room. (There is another quest here as well: see A Taste of Freedom for more details)
A note instructing Mordus to assassinate Lohar. After you report to Lohar with the note, he will want you to kill Mordus, who is located at Wrecker's Cave.
Way to Wrecker's Cave
Wrecker's Cave is on the west side of the map, near the bridge where the troll is.
Along the way between Driftwood and Wrecker's Cave, you'll be ambushed by possessed dwarfs at least twice. The first time, the spell they're under can be cleared with Mystic. Alternatively, you can just sneak (stealth and/or invisibility spells) past all possessed dwarves you encounter on your way to the cave or in the cave, if you want to save their lives. (They'll be healed after clearing the cave, even though there's no XP or extra reward for this.)
You can use Spirit Vision to talk to possessed dwarves you killed (after the fight) and they will just seem confused. Eventually you'll find a camp with dead dwarfs on the high ground, and clicking on a nearby cave you can talk to Warron, an associate of Lohar, who was hidden there with a female dwarf while voidwoken were killing their partners. Passing a speech check you can convince them to help you make it to their "cove".
Before you enter the main entrance of wreckers cave, a scripted event with a talking voidwoken will occur. If you attack him fast enough, you can draw him into battle to, otherwise he will leave.
Inside the Wrecker's Cave, you will find a survivor, but there appears to be no way to explore further. Cast Spirit Vision and you will see many ghosts in this area; talk to them to learn what happened here. However, when you investigate the end of the cave, four storm wing voidwoken will appear, attack and kidnap you. You and your team members will be separated and taken to the lower area, the depths of the cave. The goal in this section of the dungeon is to reunion your party members again and then explore this area.
Note: If you killed the voidwoken before they kidnapped you, just teleport yourself to the lower area (alternative route) or (with high enough wits) dig up a hole to descend.
- You can walk around the troll bridges and use the teleport spell to move a party member to the beach near the way-point and go into the cave from the back to avoid having the party split.
- Alternatively, use the entrance near the Wrecker's Cave - Cove waypoint to enter the area. Or sneak through the cave to the far north and use teleport to reach Mordus without fighting any other battles. These shortcuts will lead to an immediate fight with Mordus without being able to clear the dungeon normally.
Main route (with separated party members):
One of your team members (the main character) will be locked in a place without enemies; explore the surroundings and you will find some letters regarding the quest Shadow over Driftwood and The Law of the Order. If you talk to the dwarf in front of the strange device, you can also advance the personal quest for Ifan Ben-Mezd. The door to other areas is locked; you will have to lockpick the door to get to other companions (or find the tunnel hole if you can't pick locks).
If your character can't lockpick, find another companion who starts in a bedroom. The private chamber key is in this area. However, this character needs to defeat several possessed dwarfs and voidlings to get the key. (If you want to leave this area now, try to find the hidden hole that will transport you to the entrance of the cave. Shovel or lizard is needed to dig the hole).
You can use the teleporter pyramids to reunite the party faster. If you have difficulty getting the keys when your party is separated in the cave, remember that you can destroy doors by attacking them. Most of the doors in the cave have relatively low health and will go down after a few attacks.
The third party member is trapped in a cave full of voidlings. Unless that character is incredibly good in combat, use your other characters or a teleport pyramid to save him/her. (Through a cave in the same area you find the key)
If the big eggs hatch, the Voidwoken coming out of those will award no EXP, but loot instead, so this place is great to stock up on greater fire essences, and a quite bit of money loot.
In the depths of Wrecker's Cave, you can find some letters and a ship manifest, mentioning that a Deathfog delivery device was stolen.
After you have gathered all companions, you can proceed to the next area through a ladder in a shipwreck. You will find Mordus in this area, he will attack you with his possessed henchmen.
Battle with Mordus:
Killing Mordus will end the fight but you will lose out on the EXP from the other dwarves that joined him in this battle, they will die without you getting EXP.
- If Mordus manages to transform to a stronger form during the fight, he will not be worth more EXP.
- Once you strike him down, the battle is over. You can decide to let him live or not.
- Also, if you kill Mordus before going through the whole cave, the possessed dwarfs you'd have to fight all around will be friendly (and you will be missing on EXP).
Mordus can teach you source for Powerful Awakening. If you want more Source, eat the Voidwoken heart which he will offer you. If you force him to tell you who exactly he's afraid of (who is his master?), he will be ripped apart.
Report your findings to Lohar:
- He will give you a key for a reward. (for a chest on the second floor of magister's barracks)
- If you have Mordus's amulet in your inventory, Lohar will take the amulet and give you Lohar's Two-Handed Source Hammer.
- Killing Mordus will end the fight but you will lose out on the EXP from the other dwarfs. Also, if you kill Mordus before going through the whole cave, the possessed dwarfs you'd have to fight all around will be friendly (and you will be missing on EXP).
- If you bring Mordus's amulet to Lohar, then the royal letter to the magisters, then return to Lohar again, he will reveal that he knows you betrayed him, but he owes you, so he won't start a fight. In this case you can then kill him for the magisters quest without the entire undertavern turning on you.