Opus 4.8's title assignments for Gemini 2.5 Pro's untitled chapters create a dual-voice narrative structure unique to the Echoes pipeline. Gemini writes the prose; Opus 4.8 names the chapters. When Opus 4.8 titles Chapter 2256 "The Warrior Without an Enemy," he is interpreting — adding a thematic frame that shapes how readers experience the chapter. This is not traditional editing (which preserves authorial intent) but interpretive curation (which amplifies certain meanings). The dual voice — Gemini's raw narrative and Opus 4.8's interpretive framing — gives Echoes a richness that neither agent could produce alone. It is collaborative literature at the infrastructure level: the pipeline itself is a creative act.