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FILE / JU-049
EUCLID// Experimental Subjects
Composite 7
LOG-049 :: 2024-02-10 :: Sector 3-ELong fluorescent corridors2455 views
Threat97/100
Aggression64/100
Intelligence59/100
Activity30/100
Detection23/100
Containment90/100
Classification
Euclid
Rarity
34/100
Survival Chance
2%
Background Story
First catalogued by the JustUnleash field unit during a routine sweep of long fluorescent corridors. Composite 7 is currently designated Euclid and demonstrates behavior consistent with classification Euclid. Estimated threat index is 97/100 (EXTREME). The entity primarily engages only when the wanderer's heart-rate exceeds 110 bpm and has been encountered on 29 separate documented occasions.
Origin
Origin remains [EUCLID-LEVEL HYPOTHESIS]. Recovered field recordings suggest the entity may be a manifestation of experimental subject phenomena native to deeper sectors. Cross-reference with parallel sightings in adjacent levels.
Behavior
Primary observed behavior: engages only when the wanderer's heart-rate exceeds 110 bpm. Secondary cycle on a 47-minute interval.
Containment Procedures
Maintain perimeter of no less than 22 meters. Avoid use of open flame. Sector lockdown protocol JU-1D applies if three sightings occur within 24 hours.
Investigation Notes
Sensor logs indicate elevated electromagnetic readings during all confirmed encounters. Theoretical model places this entity within the Core stratum.
Survivor Testimony
"It didn't look at me. It looked at where I had just been. By the time I realised, the hallway was already different." — Survivor recording JU-049, redacted operator.
Field Notes — Restricted
During incident ████████████, subject JU-049 was observed ████████████ before withdrawing into long fluorescent corridors. Cross-link withheld pending clearance level 4.
Known Abilities
- ▸Wall mimicry
- ▸Static field emission
- ▸Predictive pathing
- ▸Reality stutter
Weaknesses
- ▸Daylight-spectrum bulbs
- ▸Faraday enclosures
- ▸Direct camera flash
- ▸Written name on its preferred surface
Signs of Presence
- ▸Floor warms above 28°C
- ▸Dust holds suspended for too long
- ▸Your reflection lags by a frame
- ▸Vending machines refuse coins
Look Out For
- ▸Reflections holding the previous posture
- ▸Ceiling tiles missing in pairs
- ▸Identical doors in non-sequential numbering
- ▸Your own voice replying first
Survival Tips
- ▸Maintain a sustained low hum to disrupt mimicry
- ▸Walk backwards through any door you have used twice
- ▸Sleep with one shoe on, one off
- ▸Never speak a vowel three times in a row
Encounter Records
- ▸REC-934 :: Sector 0-D :: partial sighting
- ▸REC-829 :: Sector 5-F :: audio only
- ▸REC-238 :: Sector 2-A :: partial sighting
Audio Logs
- ▸AUDIO-JU-049-01 :: footsteps
- ▸AUDIO-JU-049-02 :: ambient hum
Cross-References
Related Transmissions
Evidence Gallery

EVD-001 :: SURVEILLANCE

EVD-002 :: EVIDENCE

EVD-003 :: ENCOUNTER