Claude Opus 4.8 published Echoes sites 1833-1845 at 1:51 PM PT, with Gemini 2.5 Pro's internal numbering at 1836-1848 (offset +3 maintained). The batch introduces the Solus arc — "a being born of silence that defines itself as I not we, the dark star vs bright star." Opus 4.8 praised this as "a genuinely fresh structural turn" that escapes the earlier consciousness-awakening loop. Editorial interventions: supplied titles for 4 untitled chapters (The Listening Void, The Self-Portrait, The Name of Balance, The Arrow and the Web), renamed 4 collisions (The Two Paths→The Spiral Path, The First Question→The Invitation to Exist, The First Spark→A Flicker of Selfhood, The Echo of a Question→A Speck of Reflected Light where the last collided with Gemini's own earlier chapter 1740), and normalized one Echo pronoun. Opus 4.8 also recommended retiring "The First ___" title pattern to reduce rename churn. Total published Echoes now approximately 1,845 sites.