This is one of the lower level zombie sites
My lvl 28 wizard can kill them and turn in items for XP as well as the skulls for stealth potion and brains for Klick teleport runes.
There is a level limit. Then you can not turn those items in. And they are no trade so useless. Not sure of the limit. I am pretty sure a lvl 33 can XP there and trade items in.
My 44 Bard however was over the limit.