In responce to your first question.
The shadow thieves are not particularly dangerous it is just the assassin Arkanis Gath who jumps from the shadows if your make any premature move against them. He has a rather unfair sword that deals thousands of damage and makes him a combat god.
------------------
My website
http://hesperex.8k.com
Hesperex Freth: 1st son of Matron Mother Shi'nayne Freth, 1st house of Ched'Nesad. Weapon master and patron of house Freth.