THRESHOLD LOG 08-E5

Designation: Loading Bay M-5

Apparent timestamp: 22:47 / 09:11 / 22:47

Entry method: Roll-up door from unmapped access corridor

Environmental Baseline

High-bay LED lighting, 5000K, intensity stable at 220 lux.

Ambient temperature 12.8°C. Humidity 47%.

Air pressure 1.2% above external baseline. No measurable air movement.

Background sound is a low-frequency hum at 38 Hz. Hum amplitude increases by 3 dB every 90 seconds then resets.

Spatial Observations

Bay measures 28 m wide by 41 m deep by 9.4 m high. Measured depth after 20 m of travel: 33 m.

Floor: sealed concrete with yellow safety lines. Lines form closed rectangles that do not match the bay perimeter.

Walls: corrugated metal panels. Panels show impact dents at regular 2.7 m intervals along a horizontal band 1.6 m above floor.

Ceiling: exposed steel trusses. Truss spacing is 4.1 m. Counted trusses total 11. Measured span accounts for 9.

Loading dock level is raised 1.2 m. Dock edge is continuous on all four sides of the bay.

Cargo containers of uniform size (2.4 m × 2.4 m × 6.1 m) occupy 14 positions. Containers are empty. Doors face inward.

Anomalies

Yellow floor lines shift position when observer turns 180 degrees. New positions remain consistent until the next turn.

Walking toward any dock edge increases perceived height of the edge by 0.3 m per 5 m of approach. Actual measured height remains 1.2 m.

Container interiors register 4.9°C colder than bay ambient. Exterior surface temperature matches ambient.

Hum frequency drops to 31 Hz when standing inside a container. Frequency returns to 38 Hz upon exit.

Elapsed time on recording device is 19 minutes. Wristwatch shows 7 minutes elapsed.

Bay orientation inverts after three full circuits of the perimeter. North becomes south. Compass confirms the change. Physical landmarks remain fixed relative to entry door.

Entity Notes

None recorded.

Exit / Continuity Status

Exit not achieved.

Explorer reports inability to re-locate the original roll-up door after second orientation inversion.

Recording continues for 47 minutes. Battery drain is 2.3× expected rate.

Temporary door openings produce no residual effects on personal equipment.