Okay.
So i'm reading a lot of comment or strategies.
And they all say south.


The first time i did this, i went south, to the south exit.
but you can just abandon the quest, restart it. and then go to the house that is on the farm.  you wait awhile, and then they will spawn right there.  also, if you have a friend along with you to do this quest, it's an okay grinding spot because when i'm a 38 mage and i did it with a 39 warrior and we got some mad XP because they kept respawning like 30 secs after we cleared it.

sorry if i repeated anything.