You need to complete [Daughter of the Dark God (II)], located in Bolderfall, before this one becomes available. You can find Lyblac, the woman from the first quest, on a wooden bridge on the western side of the southern part of Saintsbridge. After speaking with her, she scurries off and Alphas, the man who seems enamored by Lyblac, arrives. Using Alfyn or Cyrus, Inquire/Scrutinize Alphas’s Poem from him, the bring that info to the woman to the right of the cathedral’s entrance to finish the quest.