Spent 20 minutes trying to get there and there is actually a way... I cant get inside of this building because I dont have any quests but on the left of entrance there is a different note called "Ghosts". On the left of note on the edge you can jump up to the roof on the rock and then jump off to the place where note is.
bugged
Obtainable, inside on a crate
I need that they pull me or I pull them ?
I tried but did not work is there a video of how ?
You can get this by dueling someone inside and pulling yourself up with the Blunderbuss' Claw Shot
Still bugged? i couldn't find it anywhere
2 months later, still not obtainable.
Still locked behind a quest wall. You can get close enough that Trial of the Heartforge appears as a green quest, but you still can't physically get there, there is no way to jump up to DO it. Maybe soon... The fact that this is now a green quest is encouraging, it's now possible to do those if you're not actually on the quest, except for this one.
Fixed in latest patch. Lies now on the ground on base level, no need to trick to try to jump on the wall or tp to player in rixe.