Noting that perationalmondo (account age 320 days) recently applied for site membership. They have the following sandboxes, which have many obvious common indicators of AI-generation:
https://scp-sandbox-3.wikidot.com/scp-7743-the-mushroom-factory from March 2025
[[https://specialarad.ro/tutun-si-arhitectura-o-istorie-putin-cunoscuta-a-fabricii-de-tutun-parasite-din-gradiste/
]]# **Item #: SCP-7391
**Object Class:** Keter
### **Special Containment Procedures:**
SCP-7391 is to be monitored via remote surveillance systems at all times. A 500-meter exclusion zone has been established around the perimeter of SCP-7391, enforced by security personnel to prevent unauthorized access. All entrances to SCP-7391 are to be sealed with reinforced barriers.
Entry into SCP-7391 requires written approval from at least two members of the O5 Council. Personnel entering SCP-7391 must wear thermal-resistant protective gear and be equipped with GPS tracking devices. No individual may remain inside SCP-7391 for more than **40 hours** under any circumstances.
All materials or organisms extracted from SCP-7391 must be incinerated within **10 minutes** of removal to prevent spontaneous combustion or anomalous disintegration events. Under no conditions are organic samples to be stored or transported outside designated containment zones.
---
### **Description:**
SCP-7391 is an anomalous structure resembling an abandoned ** factory**, measuring **56.07 meters in height** and **over 245 meters in length**. While externally appearing in a severe state of decay, the internal architecture of SCP-7391 undergoes significant alterations every **45 hours**, changing the layout of walls, machinery, and passageways. The external dimensions remain constant during these resets.
Throughout SCP-7391, numerous **sacks of unknown organic tissue** are distributed across floors and storage areas. These sacks measure between **1 and 2 cubic meters** and appear visually similar to human muscle tissue, though uniformly **dark brown** in color. The tissue within the sacks proliferates over time, rupturing the containers and producing large fungal growths resembling stalks capped with irregular, asymmetrical triangular shapes. The caps exude **filamentous strands** which attach to surrounding surfaces, forming dense, web-like structures spanning entire rooms.
Extended exploration within SCP-7391 results in the spontaneous emergence of **seasonal environmental cycles** confined to the interior. Each cycle lasts approximately **2 hours**, progressing from spring to winter in accelerated sequence. Climatic conditions intensify with each ascending floor; higher floors experience colder temperatures and harsher weather manifestations. Each level supports a distinct ecological system, adapting to the simulated season and temperature gradient.
In addition to fungal growths, SCP-7391 generates **organisms resembling enlarged *Agnostus pisiformis*** (a prehistoric trilobite species). These entities hatch from smaller sacks, growing rapidly to adult sizes of **3–4 meters**. Their bodies consist of fungal matter interlaced with visible **spore-releasing pores** along their dorsal surfaces. Variants include arboreal climbers, gliding organisms with bat-like membranes, terrestrial quadrupeds with sharpened limb structures, and aquatic forms occupying subterranean water systems. Collectively, these entities form a complex trophic hierarchy, including herbivorous and carnivorous species.
At the conclusion of each **45-hour cycle**, SCP-7391 enters a “reset” phase. During this phase, carnivorous *Agnostus pisiformis* variants exhibit heightened aggression and coordinated hunting behaviors, targeting any remaining lifeforms within the structure. Attempts to communicate with these entities during this phase have universally failed. Survivability beyond this point has not been documented.
Materials or organisms removed from SCP-7391 **spontaneously combust or evaporate** within seconds once outside its perimeter, reaching internal temperatures exceeding measurable limits before total disintegration. The thermal anomaly remains confined to the material and does not propagate into the external environment.
Additionally, SCP-7391 displays **minor internal seismic tremors** approximately 30 minutes prior to each reset event. Personnel who remain inside beyond a full 45-hour cycle exhibit irreversible psychological degradation, manifesting as hallucinations, paranoia, and persistent auditory illusions described as “the factory rebuilding itself from inside out.”
---
### **Addendum 7391-1: Observations Regarding the 45-Hour Cycle and SCP-7391-1 Entities**
Ongoing observation and exploration of SCP-7391 have provided additional insights into its anomalous internal ecosystem and cyclical resets. The **45-hour cycle** culminates in significant environmental and behavioral shifts within SCP-7391, followed by a complete spatial reconfiguration.
Key observations include:
1. **Cycle Stages:**
* **0–38 hours:** Internal ecosystems remain relatively stable. Organisms classified as SCP-7391-1 (biological entities resembling enlarged *Agnostus pisiformis*) exhibit normal ecological behaviors (foraging, territorial defense, mating displays).
* **38–43 hours:** SCP-7391-1 entities display increased agitation and congregation near access points and fungal structures. Audible low-frequency vibrations (\~22 Hz) detected throughout the facility.
* **43–45 hours:** SCP-7391-1 entities become highly aggressive, hunting all detectable organisms—including other SCP-7391-1 variants. Carnivorous specimens coordinate in packs and target remaining intruders systematically.
* **45-hour mark:** Interior emits a resonant pulse at 110 dB (frequency fluctuating between 80–120 Hz), coinciding with complete structural reset and presumed destruction of all biological matter within.
2. **Entity Classification:**
SCP-7391-1 exhibits morphological diversity corresponding to environmental strata:
* **Ground-level variants:** Heavily armored, quadrupedal organisms with spined limbs adapted for traversing debris.
* **Upper-floor variants:** Lighter, gliding forms with membranous appendages allowing short-range flight or extended leaps.
* **Aquatic variants:** Located in lower substructures flooded by anomalous liquid, equipped with elongated appendages and bioluminescent markings.
Behavioral studies confirm increased intelligence during the final cycle stage, including rudimentary tool use, trap setting, and coordinated attacks against intruders.
3. **Thermal Anomalies:**
In the final two hours of the cycle, internal temperatures fluctuate unpredictably, ranging from -40°C to 750°C in isolated pockets. These shifts coincide with the proliferation of fungal growths and the emergence of new SCP-7391-1 variants from ruptured organic sacks.
Personnel are reminded that **no attempt should be made to remain within SCP-7391 beyond 40 hours**. Retrieval after the 43-hour mark is considered infeasible. Any communications received from within SCP-7391 after 45 hours are to be treated as residual anomalous signals and do not indicate survivor presence.
---
### **Notes:**
* Researcher Ilyasov’s team reported anomalous “whispering” sounds at \~42 hours, described as resembling multiple overlapping voices speaking in unknown dialects. Audio logs were corrupted upon extraction.
* Thermal imaging of the reset event confirmed temperatures exceeding sensor limits (estimated >1500°C in core regions). No residual heat signatures were detected externally post-reset.
* SCP-7391-1 instances have not been successfully recovered or contained post-reset; all samples either disintegrate or undergo spontaneous combustion once removed from SCP-7391.
* Proposal to send autonomous drones equipped with long-duration data transmission systems is under review.
---
### **Discovery:**
SCP-7391 was discovered on ██/██/20██ in ████████, ███████ following reports of anomalous thermal signatures and missing survey teams within an abandoned industrial complex. Initial investigation revealed erratic heat fluctuations and abnormal fungal growths inside the facility.
A Foundation drone deployed into SCP-7391 transmitted footage of unstable internal environments and organism emergence before transmission was lost. A recovery team was subsequently dispatched, securing the perimeter and initiating containment protocols following the disappearance of three field agents during initial exploration.
---Perfect! Iată o **Incident Log** (jurnal de incident) și o **Memo oficială** adăugată la SCP-7391, menținând același ton profesional și stil oficial SCP:
---
### **Incident Log 7391-Alpha**
**Date:** ██/██/20██
**Personnel Involved:** MTF Epsilon-6 ("Village Idiots") exploratory unit
**Summary:**
At 39 hours and 12 minutes into the active SCP-7391 cycle, MTF Epsilon-6 attempted a deep exploration of Level 3. The team encountered abnormal fungal growth obstructing primary stairwells, necessitating the use of thermal cutters. Approximately 40 minutes later, surveillance noted a sudden drop in interior visibility due to a thick airborne particulate of unknown composition.
At 41 hours, the team's biometric signals spiked, corresponding with reports of auditory hallucinations (“low murmuring, chanting in an unknown language”). Shortly thereafter, visual contact was lost with Agents Harker and Lutz. Agent Spencer initiated emergency extraction but was intercepted by SCP-7391-1 entities exhibiting coordinated ambush tactics.
At 43 hours, all remaining signals ceased. At 45 hours, the interior underwent structural reset; no trace of MTF Epsilon-6 personnel or equipment was recovered post-reset.
**Post-Incident Notes:**
Recovered helmet cam footage (prior to signal loss) depicted SCP-7391-1 entities forming geometric formations around downed operatives, followed by rapid deployment of web-like structures from enlarged fungal nodes. Analysis pending.
---
### **Memo from Dr. Klein to Site Director █████**
**Subject:** SCP-7391—Containment & Long-term Viability
*"Director, after reviewing the latest exploration data and post-reset thermal readings, I am formally recommending a moratorium on manned entries into SCP-7391 until we establish a reliable extraction protocol. Every attempt past the 40-hour threshold ends the same way: escalation, entrapment, and total biological annihilation. Even with drone deployments, we’re losing hardware to spontaneous combustion or material disintegration.*
*I don’t believe SCP-7391 is just a factory. It’s adaptive. Reactive. Possibly predatory at a conceptual level. It’s building an ecosystem not just inside itself, but out of every incursion we make. If we keep feeding it new variables, we might accelerate its evolution beyond what containment protocols can handle.*
*We need to stop treating it as a static anomaly. SCP-7391 is growing."*
— Dr. K. Klein
---Excerpts of note:
2. Entity Classification:
SCP-7391-1 exhibits morphological diversity corresponding to environmental strata:* Ground-level variants: Heavily armored, quadrupedal organisms with spined limbs adapted for traversing debris.
* Upper-floor variants: Lighter, gliding forms with membranous appendages allowing short-range flight or extended leaps.
* Aquatic variants: Located in lower substructures flooded by anomalous liquid, equipped with elongated appendages and bioluminescent markings.
Behavioral studies confirm increased intelligence during the final cycle stage, including rudimentary tool use, trap setting, and coordinated attacks against intruders.
### Memo from Dr. Klein to Site Director █████
Subject: SCP-7391—Containment & Long-term Viability
*"Director, after reviewing the latest exploration data and post-reset thermal readings, I am formally recommending a moratorium on manned entries into SCP-7391 until we establish a reliable extraction protocol. Every attempt past the 40-hour threshold ends the same way: escalation, entrapment, and total biological annihilation. Even with drone deployments, we’re losing hardware to spontaneous combustion or material disintegration.*
*I don’t believe SCP-7391 is just a factory. It’s adaptive. Reactive. Possibly predatory at a conceptual level. It’s building an ecosystem not just inside itself, but out of every incursion we make. If we keep feeding it new variables, we might accelerate its evolution beyond what containment protocols can handle.*
*We need to stop treating it as a static anomaly. SCP-7391 is growing."*
— Dr. K. Klein
https://scp-sandbox-3.wikidot.com/scp-9396-the-seasonal-engine most recent revision, 27 retained
[[<image assan.jpg size="medium"]]
**Figure 1:** Exterior section of SCP-9396 photographed during the Foundation’s initial containment survey.
[[/size]]
**Item #**: SCP-9396 — “The Seasonal Engine”
**Object Class:** Keter
**Special Containment Procedures**
A 500-meter perimeter has been constructed around scp-9369 and is moniterd non stop through aerial drones, thermal imaging rays, and on staff personal operated by Site-██.
The surrounding district, including the industrial area, has been completely closed off to civilian access under the guise of a habitat for an endangered species.
All known access points to SCP-9396 have been completely cut off and sealed with concrete and steel beams. However, routine structural inspections are conducted every 30 days to identify breaches that may occur due to interior reconfiguration events.
Entry into SCP-9396 always requires authorization from two Level-4 personnel and approval of the site's head director. Exploration teams are equipped with:
• sealed environmental hazard suits
• independent oxygen supply systems
• thermal protection equipment
• GPS-linked navigation beacons
• tether-based traversal systems
Personnel and exploration teams are not allowed to remain inside SCP-9396 longer than 40 hours. Automated evacuation alerts activate at 38 hours into each cycle.
Under no circumstances may personnel remain inside the structure during the onset of a Terminal Cycle.
All biological and any material recovered from SCP-9396 must be destroyed within 10 to 15 minutes of removal. Attempts to transport or move organic samples outside containment have always resulted in spontaneous combustion after approximately 20 minutes.
As a result, all and any tests must be conducted on-site.
**Description**
SCP-9396 is a giant abandoned factory that is located in ████████ ███████ Romania.
The factory appears to be based on early industrial-era architecture, constructed from red brick reinforced with steel framing and stone supports located behind the red brick exterior.
The structure measures approximately:
• 110 meters in height
• 420 meters in length
• 260 meters in width
Despite the factory's appearance and some deterioration, SCP-9396 remains structurally stable after tests and studies.
**Exterior Architecture**
Externally, SCP-9396 resembles a large early-industrial factory or a saw mill.
Much of the lower exterior is in decay, including cracked seams, partially damaged walls, and vegetation covering most of it.
Unlike the internal ecosystem of fungui present within SCP-9396, the vegetation on the outside of the structure appears biologically normal.
The outside of SCP-9396 is composed of:
• mature trees
• climbing vines
• dense shrubbery
• opportunistic ground vegetation
**Internal Spatial Behavior**
The entire interior of SCP-9396 undergoes a complete spatial reconfiguration every 45 hours.
During the reconfiguration
• hallways shift position
• rooms collapse and reform
• staircases relocate
• industrial equipment appears or disappears
These architectural changes occur over several minutes and are accompanied by seismic vibrations throughout the whole structure.
The external building remains unchanged during these events.
**Ecological system**
SCP-9396 has an self sufficient ecosystem within the factory.
Within the SCP-9396 , all biological life continuously evolves and grows from a complex fungal network, forming an ecosystem that evolves over the time period of the 45-hour cycle.
This ecosystem is composed of specialized biological niches that evolve and thrive depending on the climate and levels of SCP-9396 .
At the end of each cycle, SCP-9369 undergoes a complete reset and begins a new cycle.
███████ █████████ It is still not really clear why SCP-9396 does this.
**Biological Substrate**
Throughout the interior of SCP-9396 exist hundreds of organic growth sacs measuring between 1 and 2 cubic meters in volume, and composed of fungal and flesh-like materials
These structures appear to grow from the internal surfaces of walls, machinery, and floors.
After several minutes, the sacs open and release large fungal-like structures composed of
• thick vertical stalks
• rigid asymmetrical caps
• extensive filamentous root networks
These networks rapidly spread across any surface of SCP-9396 and grow at immense speeds.
The fungal network functions as the primary ecological substrate supporting all higher lifeforms within SCP-9396.
All animal-like organisms develop directly from these fungal networks, suggesting they are secondary biological constructs grown from the fungal networks rather than naturally evolving species.
**Accelerated Seasonal Cycle**
The internal ecosystem follows a repeating 45-hour environmental cycle that is divided into 4 phases mimicking the 4 seasons.
Phase Duration Conditions
Spring 11h 15m rapid fungal growth and fungal network expansion, moderate temperature
Summer 11h 15m extreme humidity, high heat, experiencing most spore release
Autumn 11h 15m falling temperature, organisms inside SCP-9396 start migrating.
Winter 11h 15m freezing temperatures, the ecosystems die, and the cycle is completing.
Environmental conditions and temperatures inside SCP-9396 change depending on the elevation level. Some high floors experience lower temperatures than lower floors.
**Subterranean Aquatic Ecosystem**
Beneath the primary structure of SCP-9396 lies an Subterranean basement like structure that has the same measurements as the rest of SCP-9396 .
These areas remain permanently flooded.
Filament networks from the fungal substrate have evolved for the aquatic ecosystems of SCP-9396 .
Unlike the upper levels, the submerged environment maintains thermal conditions and allows aquatic life to persist throughout seasonal transitions.
**Faunal Entities**
SCP-9396 produces numerous large organisms that originate from smaller organic sacs embedded within the fungal substrate.
[[f>image Screenshot%202026-03-23%20004350.png size="small"]]
These entities share several common characteristics:
• triangular or wedge-shaped body structures
• elongated stilt-like limbs
• rigid organic plating
• minimal sensory organs
An illustration drawn by ████████ █████
Movement patterns are frequently described as mechanically precise, despite their biological nature.
Mature organisms typically reach lengths of 3–4 meters.
Observed ecological roles include:
Arboreal Forms
Long-limbed climbing organisms inhabit fungal pillars and ceiling structures.
Gliding Forms
Winged variants capable of descending between elevated platforms.
Terrestrial Predators
Fast quadrupedal hunters demonstrating coordinated group behavior.
Herbivorous Grazers
Slow-moving organisms feed primarily on fungal growth.
Aquatic Variants
Elongated organisms inhabiting submerged chambers. These entities possess reduced limbs and propel themselves through lateral body undulation.
**Terminal Cycle**
At the end of each 45-hour cycle, SCP-9396 enters a collapse phase designated the Terminal Cycle.
Approximately 30 minutes prior, the structure begins exhibiting:
• seismic tremors
• rapid increases in organism activity
• abrupt environmental instability
During this phase, all predatory organisms enter a state of extreme aggression and systematically eliminate remaining fauna throughout the structure.
Following the eradication of mobile organisms, the fungal substrate rapidly deteriorates before the interior architecture resets completely
The ecosystem then begins regenerating.
**Origin Hypothesis**
Current evidence suggests that SCP-9396 is not a machine originally constructed within the
facility, but the result of an extraterrestrial organism that adapted the structure after impact.
Foundation researchers believe that several decades before containment, a biological extraterrestrial vessel entered Earth’s atmosphere and crashed into the abandoned industrial complex that now contains SCP-9396. The vessel appears to have been partially organic in nature, consisting of living tissue capable of environmental modification and self-repair.
The structure of the factory likely provided the organism with a stable enclosure. Over time, the alien organism adapted and integrated itself into the factory.
The seasonal cycling observed inside SCP-9396 is believed to be a biological weather effect produced by it. The rapid seasonal shifts appear to control the growth, reproduction, and termination of the ecosystem generated within the structure. All known plant and animal life inside the facility originates from a dense fungal substrate that functions as the primary biological medium of the organism.
Foundation xenobiologists believe this ecosystem is not intended for export outside the structure, but instead serves as a self-sustaining internal habitat required by the alien organism.
Despite possessing the apparent ability to expand beyond the building, the organism has shown no attempts to breach the structure or escape containment. Analysis of biological samples indicates that modern terrestrial microorganisms are highly destructive to their tissue. Several bacterial strains common in the outside environment rapidly destroy samples removed from SCP-9396.
It is therefore believed that the organism remains confined within SCP-9396 because the external biosphere is biologically hostile to it.
The seasonal reset event designated Terminal Cycle is believed to function as a large-scale sterilization process. During this stage, most organisms produced during the cycle are destroyed, and the environment is returned to a baseline state, after which the growth process begins again.
At present, the alien organism itself has not been directly observed. The structure currently designated SCP-9396 may therefore represent only the habitat-generation system of a larger biological entity embedded somewhere within the facility.
**Psychological Effects**
Personnel exposed to SCP-9396 for extended periods report progressive psychological degradation, including:
• auditory hallucinations
• spatial disorientation
• paranoia
• perception of structural movement
The most frequently reported statement from affected personnel is:
“The building is rebuilding itself.”
**Discovery**
SCP-9396 was discovered on ██/██/20██ following countless discrepancies in an industrial facility located in ████████ ███████.
Initial drone scans of SCP-9396 and tests concluded that multiple anomalies and seismic events originated from that location.
A Foundation containment team was dispatched.
Three agents were lost during the first exploration cycle.
The structure was subsequently designated SCP-9396.
Addendum 9396-B
Subterranean Exploration Log
MTF Unit: Epsilon-9 (“Firebreak”)
Objective: Survey flooded lower levels
00:14
Team enters submerged corridor.
Water depth approximately 110 meters.
Filament growths extend from the ceiling into the water column.
Visibility is extremely limited.
00:31
ROV Lights reveal movement beneath root structures.
Multiple aquatic organisms observed.
Estimated length 4 meters.
00:47
The entity approaches the ROV slowly.
Movement is described as deliberate and silent.
Agent Velasquez reports several organisms following the team.
01:28
A large number of organisms are emerging from deeper chambers.
Agent Velasquez:
“There are far more of them down here than we expected.”
01:51
The ROV unit pulled beneath the water surface.
Visual feed lost.
01:57
Agent Velasquez:
“They aren’t hunting us… they’re pushing us upward.”
02:07
Final transmission:
“They’re clearing the lower levels first.”
Signal lost.
End Log
Image Credits
Exterior photograph by Alex Iacob (reptilianul.ro)
Source: https://buletin.de/bucuresti/top-5-comori-arhitecturale-ascunse-ale-bucurestiului/
Source: Expedition (book) Alien Planet drawn by Wayne BarloweExcerpts of note:
Terminal Cycle
At the end of each 45-hour cycle, SCP-9396 enters a collapse phase designated the Terminal Cycle.
Approximately 30 minutes prior, the structure begins exhibiting:
• seismic tremors
• rapid increases in organism activity
• abrupt environmental instability
During this phase, all predatory organisms enter a state of extreme aggression and systematically eliminate remaining fauna throughout the structure.
Following the eradication of mobile organisms, the fungal substrate rapidly deteriorates before the interior architecture resets completely
The ecosystem then begins regenerating.
Origin Hypothesis
Current evidence suggests that SCP-9396 is not a machine originally constructed within the
facility, but the result of an extraterrestrial organism that adapted the structure after impact.Foundation researchers believe that several decades before containment, a biological extraterrestrial vessel entered Earth’s atmosphere and crashed into the abandoned industrial complex that now contains SCP-9396. The vessel appears to have been partially organic in nature, consisting of living tissue capable of environmental modification and self-repair.
Psychological Effects
Personnel exposed to SCP-9396 for extended periods report progressive psychological degradation, including:
• auditory hallucinations
• spatial disorientation
• paranoia
• perception of structural movement
The most frequently reported statement from affected personnel is:
“The building is rebuilding itself.”
Permanently banned, PM sent. Kufat and afto supporting.