While you were investigating the strange Aether in Eracus Temple Cavern, the Artefact Protector appeared and told you to deliver to Actaeon a strange message about the Shadow. On hearing this, Actaeon asked you to find the whereabouts of Philipemos, a missing Priest, and then he asked you to find the torn pages of a diary in case they were clues. The diary showed that a peddler called Hippolytus was responsible, so you went to the Observatory and killed him with the Dionera's help. Although you did what was asked for, you remain curious about the mysterious Shadow.