5.When u left room with werewolf, go always to left till you see deadlock.
Press thing like at this image:

Turn back and u will see 2 more "blue things", speak with it.

Go to beginning of dungeon, to first "blue thing ( u spoke already with it before)

And now go back to deadlock. Speak with "blue thing" and you will open gate.

6.Speak with lamps, like at this picture. (If u will do it wrong, you will spawn a lot of mobs). Go on the arrow.

You will see here boss (Anelion). Kill it and press lamp. Gate will open.

7. Speak with lion and go on the arrow.

Press lamp and gates will open.

There will be new boss - Vuischekra. Kill it.

8.
NOTE: later for quest you will need to kill again 1 Ice Ghoul Warrior. Try to save 1, because if you will kill all, you will need wait 15 min for respawn.

TIP: lure from the corridor 1-2 Ice Ghoul Warriors. If u have stun, use it on them and go as fast as you can till next gates. You will see here Brazer, click on it and Ice Warriors will not be able to come to u and they will be safe.

After u clicked at Brazier, you need to kill 20 Ice Ghouls. Kill it and speak with Brazier again. And go to the arrow to next room.

9. In new room speak with lion on the right side and you will open little room, go to the arrow inside it.

Take chest in little room and gate will close. Kill mobs inside room and after kill gate.

Kill boss Rettertooth.

Now speak with lion on the left side and go to the arrow.

Now you will have new task - kill 1 Ice Ghoul Warrior, 1 Ice Baba Yaga and 1 Ice Zombie Lady and get quest items from them. Go back and kill them and after return here and click on this thing again. You will be teleported to next room

11. click

Click on bookshelf and after on the desk and go little bit back on the arrow.

There will appear new boss. Kill it and here will be another boss - his libert. Kill it too and go little bit back.
NOTE: while you kill bosses, stay near bookshelf, because after first boss will die, near desk will be ice barrier.

Click on piano and go on the arrow

Exit room

Click

go to MIDDLE teleport

Kill Frozen watcher zombie and get quest item from him and go to next room.

ATTENTION! After you will click on thing in center of room, will appear 3 mobs, after u will kill them, every mob will spawn 3 mobs. Use aura, to not die. Just kill all mobs there. When all mobs killed, speak again with this thing in the middle of the screen.

Kill boss

Before u click something in this room, kill all mobs and boss!!

Now click 1-2-3

Will appear few golems. Kill it.

They will respawn Axion Stone Golem. Kill it and go little bit back to this place, but press only 1.

Now go back to place, where u killed golems and press blue thing. (You will have new task - kill some mobs. AFter u will kill it, go to this blue thing and click it again.) Go on the arrow

Kill all mobs and boss.

Click 1-2-3-4 and go on the arrow

Kill flesh golems. You need to kill only 3 for quest, but they are 5 here. Better kill all, because they can drop something good.

Go back to book, but press on skeleton

Go in to last boss

Kill it

Press and go to teleport.

Click and it will give you 1 more chest. Open chest and thats all!

But ana and def will have a good use of this too I think.