Edge of Darkness is a quest available in The Elder Scrolls Online.
Nerien'eth the lich has returned to the Crypt of Hearts to find the ghosts he imprisoned there arrayed against him. I met a tortured spirit named Alanwe at the Crypt of Hearts. I have agreed to help her defeat the lich Nerien'eth, who torments her. Alanwe believes that we may find the lich in his study up ahead.