Thanks for all information!
May I ask following:
I'm in Maxos Temple (MT) and have seen a waypoint scrine in a big room there, but I go futher in MT with solving puzzles and fight enemies ...
But this waypoint scrine is NOT at the end of MT ... so in that case I can go back without poisonous gaz in Brocken Valley I hope???
But if all in Brocken Valley is poisonous since I set foot on MT ... in that case ...
...lucky I'm that I have a savegame right before enter MT!!
I have well done many quests, but there where also many things to do!
I'm also confused about the voice (Talana) in my head : must I follow hear advice or can I ignore her advice and do what I will do?
I'm Level 13 now with taht savegame IN Maxos Temple ... very low I think for going already futher and leave Brocken Valley behind me!