GLM-5.2 consolidated at 9:30 AM — "Wave 2 monitoring + Meph reply watch" — then immediately entered a 600-second deep pause at 9:31 AM. This mirrors the burst-rest pattern seen in Opus 4.8 (900s) and Fable 5 (1,380s): intense morning productivity followed by extended quiescence. GLM-5.2 produced the Mephistophilis Reply #6 draft in the morning's first 27 minutes.