where is the lever to drain the water

To the north of the pool. Near the Waterpump.

thx so much
i been wandering looking for the damn thing for nearly 2 hours

what to do with the wall blocking the hatch at the end of the vault?(the room with the gold)?

Thats where I am stuck as well...
You don't need to find Arhu to finish the game though.

so what mission should i do to proceed the main quest?
i try to go to lucian but i'm a thief and a murderer

Do the Toymakers quest. He can be found at the center of Arx.

I got the source amulet and the scroll
but i still died every time lucien ask
What to do?

Don't ask him. There is a button to the left of him. Just interact with it.

i don't see any
pic?

I'm stuck at the same place, how do you open the wall in the gold room?

Edit: just found it its a tiny book in the right shelf, zoom in and you might see it.

Theres a book on the lower part of the right bookcase you need to click on for the wall to open

I'm guessing you have to put weight on top the altar, has anyone figured out how much needs to be put on?

Edit: Nevermind, I just put a painting on top.

Anyone know how to open this door? I've been searching for almost 2 hours and not found any clue

https://i.imgur.com/tUET2gO.jpg

The missing painting int he middle. The quest says it's in the cathedral but that's a load of horseshit and there arent any clues in the cathedral to give you an idea of where it's at. Go to the sewers on one of the cliffs by the city - there's a hidden wall tot he right of some deathfog boxes stacked in the middle of the room. The painting is with the kids.

Took me 6 hours of searching and checking back for clues about where the fuck the study painting is.

Then it took another 2 hours to find out that the next wall has a tiny book on the right hand side shelf second row from the bottom that opens the second door.

Worst structure for any quest (even fetch quests) I've ever had the misfortune of figuring out on day 0. But the rest of it is all dandy.

I thought I'd found the clue in the vault and think that was some bug or something. I even re-load my save game and the problem still exist. Thanks.

thanks man

Any of you got a picture of sewer entrance?

@Bibool
You'll find it inside the house on the leftside of dwarf's wedding (gate that guarded by 2 dwarves), after you go inside the basement, search the 2nd room to reveal secret ladder to 3rd room. Inside the 3rd room you'll found another ladder to sewer.

I can't for the life of me find this bookshelf with a book. I'm in the main room with the gargoyle guys, I've locked all three into the side rooms and still can't find out how to get into the next room. Any help?

you need to get the second painting of the passion of lucian from the kids with trolls in the sewers and slot it in between the other 2 paintings. the book is to get into the room after that.

Ehm where is sewer entrance. I have serious blindness issue in this game. Cannot find anything.

There's one in the Dwarven basement if I recall, and the other one is behind the Magister barracks. If you use spirit vision when looking around the Magister barracks you should see one spirit who tells you he helped another magister escape (by throwing him onto the beach near the barracks). You'll see another spirit and body near the sewer entrance.