The Drunken Lizard Pub

Hi
I'm searching the crypt for the amulet of Adler Keldam..I got the key but there are still doors i can't open so I'm running in circles...

I know I'm missing something really easy but I could use a nudge

You should look into every single corner in the northern part of a crypt, until you find a lever, which you haven't found yet.

Also look for places you can step to trigger a switch.