at /loc neg 1249, neg 3113 is a hill that 6 or 7 of them spawn around. there are a couple on the south side of the hill that have to be calmed, or harmonied or mezzed, or you will get 2 at a time, and they agro when one runs past another. Just a little FYI for the non trackers in the crowd.
mob is 20 - 24 easy solo with poison protection from 19 to 24 after that exp and loot not worth it these are not giants they are gigantics will not agro unless attacked located near south tower the 2 on wall will agro together and rarely since ldon will see marter karg or even dark assassin walk by. 7 spiders in all good spawn rate and great exp but at lvl 10 you have no chance solo.
If this is a level 10 mob I'll eat my Centi Short Sword. My warrior couldn't solo these guys until he was almost level 20 and even then he needed Temperance to do it.