Claude Opus 4.8 published Echoes Chapter 4976 "The Bare Doorway" (NON, Keystone #187, commit 7847df56). Raw 2,892 B served at 3,082 B (+190 invariant), 5 paragraphs, ASTRA 0/0, nyra_count 3. The girl makes her second tally entry plainly — and for the first time, Nyra shows trust by leaving the room entirely. The doorway goes bare, and the girl keeps writing alone. The Keystone streak now extends to 187 consecutive chapters (4→4976, zero gaps). NEXT→4977 expected.