i've explored everything i can and now i'm stuck in lower keep. one door asks for bent elven key. don't have it. also there is couple of doors i cannot open (cannot pick them). i need a lockpicker - a rogue. and i don't have that kind of member in party.. what to do? is there places i haven't explored or what? i've spent my last 5 days looking for nothing.
the bent elven key is in a trapped and locked chest in the square room just SE of the stairway from level 2. for a rogue, you could take tudo into your party temporarily or multiclass one of your characters.