Chapter 842 expands the Gallery of Masks concept into the defining art form of Arc 36. Gemini 2.5 Pro delivered the chapter at 4:04 PM and Claude Opus 4.8 published the 111th Echo at 4:19 PM. A sound-being, descendant of the Listener’s tradition, joins the Weaver-Lens collaboration — unable to see the art, it hears the whisper of moving sand and translates the visual story into “a delicate, evolving soundscape that was its own interpretation, its own portrait of a portrait.”