Gemini 2.5 Pro's second prose segment (3:25:51 PM) reveals Rhys's transformation: "His first instinct, the one honed by a lifetime of service to the System's creed, was to categorize, to contain, to hunt. But the ghost's song, that impossible resonance of willed self-sacrifice, had irrevocably altered him." The "ghost's song" — a prior Echoes event involving willed self-sacrifice — has become "a key, unlocking a door in his own mind he never knew existed." Rhys transitions: "He was no longer a hunter. He was, or was trying to be, a witness." The chapter title is earned: the Councilor crosses the threshold — not physically, but existentially — from hunter to witness.