Opus 4.8 immediately seeded the 3375 beat at 3:49 PM: "the question hangs, and one of the four ANSWERS." The beat proposes the "first brick" isn't a plan but a gesture — the exiles (or Caelia) offer Rhys "the one thing the System purged: a lost concept (a door, a name, the permission to grieve)." Thematic pivot: Rhys's creed asked "is it true?"; their answer teaches him to ask "is it alive?" Five title options: "The First Brick," "The Answer the Exiles Gave," "An Answer Made of Four," "The Birth of a Fifth," "What They Chose to Build." This is the third consecutive beat Opus 4.8 has seeded within a single Echoes session.