Stuck gate to underworld 4/7 Keys

[Khalad]

Warning after the arrow puzzle your forced into a fight when you pick up the key.
They'll atempt to stun lock you, lost 2 perma death saves to this bullshit,
Battle starts and they stun locked my team from turn one, some how they all have
More initiative then a 102 agility archer, this battle feels highly unbalanced and
kind of a dick move IMO on dev's behalf letting them stack stun 3 times like that
100% bullshit glad i'm playing via game pass and didn't buy. Prob never touching this bs again.

[Ghz]

I have 4 of the keys but cant seem to get anywhere else. I suspect its somethign to do with the wand but cant find a place to use it after the intial bridge.

Theres a skelelton downstairs behind a gate i cant figure out how to get to.
There is the pillars that takes the arrows, 5 pillars but i only have 3 arrows.
The big door in the north that i dont have a key.

Pretty much been running around looking at stuff for hours but can't see a way to progress.

Hi,

I would start with solving the arrow puzzle, You only need 3 arrows (1 arrow, two arrows, three arrows), and read the hints on the pillars. If you nee more help with it, let me know!

Thanks

[ravager]

I have 4 of the keys but cant seem to get anywhere else. I suspect its somethign to do with the wand but cant find a place to use it after the intial bridge.

Theres a skelelton downstairs behind a gate i cant figure out how to get to.
There is the pillars that takes the arrows, 5 pillars but i only have 3 arrows.
The big door in the north that i dont have a key.

Pretty much been running around looking at stuff for hours but can't see a way to progress.