Spider Monster from Moorbrook

[dianeduane]

I accepted the spiders offer to bring the brain to the magicians dungeon. i went back, killed the magician, and went down to the dungeon. but the door was locked, so i went back up, picked up the prison key, and went back down.
The door was still locked, and wont open. Every time i go down the stairs, i can see the door just closing. i swear the game is torturing me.

any help's appreciated

[Night Ω Wolfe]

Unfortunately, this is a VERY glitchy quest. for some reason if EVER at any point before or during the quest go downstairs without killing that mage and taking the key FIRST than you will never be able to unlock the door.