This is for dying in the battle with the glowing guy after leaving the Everfall. After entering the Everfall, you get the quest to collect 20 wakestones. After you have collected them by whatever means, turn them in to complete the quest. Note that this will result in the permanent closure of the Everfall. After you trun them in, there will be a cutscene then you fight a glwoing, fellow arisen. Let him kill you. When he does, there will be a cutscene and soome credits, followed by a reload screen that will send you back to the beginning of the fight where you can proceed onwards as usual.