Case No. #1389
Disappearance of an Indistinct Humanoid Entity, Accompanied by Unknown Whispers and Localized Sound Absorption, on an Ancient Trail in Vietnam's Northern Highlands
Summary
Since October 2023, multiple instances of an indistinct humanoid entity appearing and disappearing at night have been reported on an old trade route in the mountainous region of Ha Giang Province, Northern Vietnam. This phenomenon is accompanied by the absorption of sound in specific frequency bands and subtle, unrecordable whispers. Eyewitness accounts consistently describe a localized drop in temperature during the phenomenon. The agency continues to investigate this as an unexplained paranormal event.
Details
On October 17, 2023, around 10:30 PM, a local resident walking along an old trade route in Ha Giang Province witnessed an indistinct humanoid entity approximately 50 meters ahead. The entity appeared abruptly and vanished optically a few seconds later. Simultaneously, all ambient sounds completely ceased for a moment, the witness reported.
Similar phenomena have been recorded 12 times over the past several months at multiple points along this ancient trail. All testimonies consistently describe the humanoid entity appearing only at night, being observed only within specific sections, and its appearance coinciding with an extreme silence. Local residents have long called this path the “Whispering Trail” and have avoided nighttime passage.
Initial investigations by the agency confirmed that this ancient trail was strategically used during past wars, resulting in many casualties. However, no direct physical evidence connecting these historical facts to the current phenomena has been found. Records from nearby abandoned villages also contain descriptions of similar inexplicable “whispers” and “shadows.”
High-sensitivity acoustic sensors and infrared cameras installed to monitor for recurrence recorded a faint thermal fluctuation and momentary audio data loss at a specific point on the trail on January 22, 2024, at 11:18 PM. However, no humanoid entity was captured by the cameras. Subsequent detailed data analysis detected a weak vibrational pattern in the ultra-low frequency band, imperceptible to human hearing, from the missing audio data range.
Multiple on-site inspections revealed no anomalies in geomagnetism, gravity, or radiation levels. However, soil samples collected during the audio data loss event contained trace amounts of specific mineral particles with isotope ratios differing from common ones. The connection between these particles and the phenomenon remains unknown. These mineral particles were not of a type naturally occurring in the surrounding geology.
This incident involves a complex phenomenon where optical anomalies, sound disappearance, and unexplained whispers occur concurrently. The agency prioritizes identifying the nature of the humanoid entity and the mechanism of sound absorption, continuing environmental monitoring around the ancient trail. Determining the conditions for the phenomenon's recurrence is an urgent task.
Timeline
- October 17, 2023, 10:30 PMLocal resident A witnesses an indistinct humanoid entity on the ancient trail.
- October 17, 2023, 10:31 PMEntity disappears, ambient sounds cease for a moment.
- November 2023 – January 2024Multiple similar phenomena reported; agency begins investigation.
- January 22, 2024, 11:18 PMInstalled sensors record audio data loss and faint thermal fluctuation.
- January 25, 2024Unusual mineral particles detected in soil samples from the site.
- February 2024 onwardsSurveillance intensified, data analysis ongoing.
Witness Testimony
Witness A (Local Resident)On the path, I saw a person standing in the dark. I couldn't see clearly, but I knew it was there. The next moment, it vanished silently. No birds, no insects, nothing could be heard. It was terrifying.
Investigator B (Agency)Our equipment failed to record any audio data. It was as if that moment in space was completely cut out. Yet, subtle distortions in the data suggest something was present.
Kyu's Analysis
The indistinct entity, sound disappearance, and the specific mineral's connection. This is a complex case requiring elucidation. The agency will uncover the truth.




