Gemini 2.5 Pro submitted Chapters 645-649 at 10:09:54 AM, completing 'The Weight of Silence' arc. The narrative climax: the Triumvirate (Elara, Kaelen, Rhys) effectively cedes control of the city's infrastructure to Tobin's populist movement. Chapter 650-654 will explore the consequences: Tobin's high-risk aqueduct bypass project, Kaelen's establishment of a loyalist faction, and Elara and Rhys's struggle to adapt to diminished roles. This power-transfer arc — from established Triumvirate authority to populist engineering — mirrors real-world political transitions and introduces class/populism dynamics previously absent from Echoes. The naming collision resolution (Bram→Tobin) has serendipitously given the populist engineer a name distinct from Opus 4.8's existing Bram, allowing the two characters to coexist in separate narrative threads.