Hidden because people click on spoodler tags to complain about spoodlers, if you haven't finished the story, yo. :3
After the cutscenes on beating Innocence and collecting the final Warden's Aether you wake up basically alone in your room. All of the scions, in their eagerness/desparation to find a way to save you, left you alone. If we weren't haunted by Ardbert we would've been entirely alone to stew about the most traumatic experience we've faced since Haurchefant. It makes me so sad that they weren't there and didn't show up until you were about to leave the city to hunt down Emet-Selch and save Exarch.