Larian Studios Forums Divinity - Original Sin Divinity Original Sin - Help/Tips/Tricks Stuck at the Ascension trials + other minor quests

Ok, I've figured it out. There is a door with lava and grate at the end. There's a hidden switch on the wall beside it. Remove lava with tornado and teleport yourself behind the grate. There will be a broken bridge - teleport again. On the wall there is actually a door you can open. It reveals another waypoint portal - the vault. Go there and teleport behind another grate to the heaps of gold and a teleport mirror which leads to the earth key. Yay. Another way to start this is to go the room where a head spills poison cloud - there another hidden switch that opens the door to the broken bridge.