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 that is 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' house, you will notice two dwarves 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 dwarves 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, which are located inside the chest. Reading it will reveal that there is a button behind the shrine that you can press; 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.)
You will then need to move some crates to find a row of books hidden behind the chest, with a note within 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.
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 dwarves at least twice. You can use Spirit Vision to talk to them (after the fight) and they just seem confused. Eventually you'll find a camp with dead dwarves on the high ground, and clicking on a nearby cave you can talk to Warron, an associate of Lohar's, who has hidden there with a female dwarf while voidwoken killed their partners. Passing a speech check you can convince them to help you make it to their "cove".
Inside the Wrecker's Cave, you will find a survivor, but there appears to be no way to explore further. However, when you investigate the end of the cave, four storm wing void woken will appear and attack you. You and your team members will be taken to the depths of the cave, separated. Alternatively 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.
(Note: If you killed the voidwoken before they can kidnap you, just teleport yourself to the lower area. Alternatively, use the entrance near the Wrecker's Cave - Cove waypoint to enter the area. This will lead to an immediate fight with Mordus.
Note: Cast Spirit Vision and you will see many ghosts in this area; talk to them to learn what happened here.)
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 talked 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.
If your character can't lockpick, find another companion who starts in a bedroom. The private chamber key is in his/her area. However, this character needs to defeat several possessed dwarves 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)
The third party member is trapped in a cave full of voidlings. Unless that character is incredibly good in combat, use your other characters to save him/her. (Through a cave in the same area you find the key)
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. But once you strike him down, the battle is over. (You can decide to let him live or not. If you force him to tell you who exactly he's afraid (who is his master?), he will be ripped apart before teach you anything). Mordus can teach you source for Powerful Awakening, but don't hesitate. If you want more Source, eat the organ. You can kill him later.
Report your findings to Lohar, and he will give you a key for a reward. (for a chest on the second floor of magister's barracks)
- When your party is separated in Wrecker's Cave, you can use the teleporter pyramids to quickly reunite the party.
- 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.
- Once you go back to hand the quest to Lohar after dealing with Mordus; 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's will end the fight but you will lose out on the exp from the other dwarves