That gate at the bottom next to the "Lake" waypoint is a one-way gate and EXIT only.
There are 2 more doors up above. First, take the top one to get the "Scrying Orb" for the minister at the Village. Look into it before you turn it in.

p.s. Be nice to the skeleton while doing that wink


I'd like to close by quoting Bellegar's famous last rhyme:

"Cursed be the mother that bred thee!
The wench must have been a hell-spawned banshee!"