[[>]] [[module Rate]] [[/>]] **Item #:** SCP-9815 **Object Class:** Euclid **Special Containment Procedures:** SCP-9815 is contained within a 50 km restricted zone located in the Amazon Basin. The containment boundary is defined by a reinforced steel security fence measuring 9 m in height, supplemented by a continuously cleared buffer zone extending 2 km beyond the fence line. Expansion of SCP-9815 is monitored through a combination of satellite imagery, aerial reconnaissance, and automated soil analysis stations positioned at 500 m intervals along the containment perimeter. Vegetation or soil samples exhibiting anomalous characteristics beyond the established boundary are to be removed and incinerated within 24 hours of detection. Civilian access to the containment zone is prohibited and enforced under the cover story of a protected ecological reserve combined with reports of hazardous biological contamination. Foundation personnel assigned to SCP-9815 must undergo decontamination procedures following any interaction with the anomalous region. In the event that SCP-9815 demonstrates an expansion rate exceeding 20 m annually along any section of the perimeter, Site Command is to initiate Protocol Greenwall, involving temporary perimeter reinforcement and intensified removal operations. **Description:** SCP-9815 is a section of tropical rainforest located in the Amazon Basin measuring approximately 32 km in diameter. SCP-9815 exhibits anomalous ecological behavior, designated as boundary creep, in which adjacent non-anomalous terrain gradually converts to the properties observed within SCP-9815. Expansion has been observed at an average rate of 14.6 m per year, with seasonal variation correlating with regional rainfall. Initial indicators of SCP-9815 expansion include alterations in soil chemistry, increased fungal and microbial activity, and the gradual replacement of local flora with species characteristic of the anomalous region. Fauna present within SCP-9815 exhibit atypical behavior, including coordinated movement patterns not observed in non-anomalous populations. Secondary anomalies observed include minor temporal and spatial inconsistencies near the expanding perimeter, including misaligned growth patterns and localized navigational disorientation. SCP-9815 has remained stable since initial containment efforts, and no long-term increase in the rate of expansion has been observed under controlled monitoring conditions. Attempts to remove or neutralize SCP-9815 through large-scale deforestation or fire have historically resulted in temporary acceleration of boundary expansion. **Addendum 9815-A-Perimeter Observation Log:** [[div class="blockquote"]] (START LOG) **Dr. Silva:** Team Bravo, confirm positioning. GPS readings indicate 498m from perimeter marker.” **Researcher Tanaka:** “Confirmed. Drone sweep complete. No anomalous flora observed beyond 495m.” **Technician Morales:** “Soil samples taken from grid point 7B. No immediate chemical anomalies.” **Dr. Silva:** “Proceed along the marked trail. Remember: no off-path movement.” **Researcher Tanaka:** “Movement detected in flora cluster ahead. Growth appears accelerated—distance to perimeter now approximately 505m.” **Dr. Silva:** “Maintain observation. Do not engage physically. Record samples only if safe.” **Technician Morales:** “Expansion rate consistent with 15m per year estimate, but concentrated in this micro zone. Soul composition has shifted: elevated phosphorous and nitrogen levels detected.” **Dr. Silva:** “Documented. Pull back to 500m marker. Continue remote monitoring.” (END LOG) [[/div]] **Analysis:** Observed activity is consistent with prior seasonal expansion reports. No personnel exposure beyond safety buffer occurred. Anomalous flora growth remains confined to SCP-9815 boundaries but demonstrates potential for minor, localized acceleration. Remote monitoring continues.