Hi, From the top of Trollheim, take the northwest path, just like you would for the ice part of the Desert Treasure Quest. At the end of the path, you should reach a ice gate to your right. Take the northwest path to a ice cave instead. Just go through the tunnel (bring food and energy pots, there are a lot of level 100+ ice trolls there) and you will end up at the top of the Trollweiss Mountain. Just go a little east to find Brimbrickle then.