Log 71-P68

Designation: Observation Gallery M-42

Apparent date/time: 2026-10-20 10:53 / 2026-10-19 17:48

Entry method: Access door from corridor labeled 'Research'. Door latch unlocked with minimal force.

Environmental Baseline

Lighting: fluorescent tubes. Color temperature 3700 K by meter, 5000 K by eye. Flicker interval 1.2 s.

Ambient temperature: 16.8 °C at entry, 21.5 °C mid-gallery.

Background sound: low-frequency hum. Frequency 49 Hz. Arrives 1.7 s after initial meter reading.

Air movement: none detected. Pressure holds steady at 1013 hPa.

Spatial Observations

Gallery rectangular, estimated length 82 m by laser measure. Measured length varies: entry shows 56 m, exit measures 94 m. Width consistent at 3.7 m. Height starts 3.5 m and increases to 4.1 m mid-gallery then decreases back to 3.5 m on exit. Floor concrete with occasional small puddles. Walls painted cinder block. Paint flaking in irregular patches every 20 m. Ceiling carries recessed LED panels, lights remain off.

Anomalies

Sound of footsteps arrives 1.9 s after initial impact observed. Wall-mounted video screens show identical loop: a researcher walking down the hall and turning back to retrace steps exactly after 30 seconds. Loop repeats precisely every minute despite no interaction or new footage recorded. Explorer's reflection in glass doors fixed at entry point after moving 25 m forward.

Entity Notes

None observed.

Exit / Continuity Status

Exit achieved through original access door. Latch engaged automatically. Residual effect: video loop plays for additional cycle post-exit, resetting at the beginning of a minute. Continuity intact.