 Item number, SCP-452 Object Class, Euclid Special Containment Procedures SCP-452 specimens are contained in a 5-meter by 5-meter isolation chamber at Site B. Specimens should be fed live insects, preferably crickets or mealworms, but other harmless insects are viable. At least once a week, and regular observation should be maintained to ensure the health of the specimens. Personnel tasked with maintenance of SCP-452 should wear sealed suits at all times, while inside SCP-452's containment. Experimentation on SCP-452 may be performed with permission from at least one Level 4 personnel, provided all safety requirements and regulations are observed. Specimens taken out of primary containment should be kept inside the specially prepared portable terrariums designated for safe use with SCP-452. Exposure of personnel to the effects of SCP-452 should only be performed in isolation chambers for easy recovery of SCP-452 specimens after exposure. Description SCP-452 is a colony of Latrodectis Hesperus, the Western American Black Widow, physically indistinguishable from normal spiders of its kind. SCP-452 has a preference to spin webs near areas where humans sleep, and when allowed to freely roam, will attempt to relocate if no humans sleep near its web for extended periods of over a week. When a sleeping human subject within 5 meters of an SCP-452 web enters Rapid Eye Movement, or REM sleep, SCP-452 suppresses the subject's ability to dream, even in subjects with chronic dreams and or nightmares. Subjects Upon waking, generally report having had restful sleep, though several subjects have also reported feeling unusual, like they are missing something. Furthermore, if a specimen used in this manner bites any human within approximately one week from the initial event, the bitten subject will suffer vivid hallucinations, in addition to the normal effects of spider venom. SCP-452 was recovered from following intercepted hospital reports of anomalous visions experienced by spider bite victims, after which a Foundation containment team was dispatched. Experiment Log 452-1 State Expunged Source D-21-017 Female Caucasian, 29 years old Subject D-21-020 Male Hispanic, 31 years old Procedure Specimen of SCP-452 in sealed terrarium placed near bed of source for one week, then subject exposed to specimen, resulting in subject being bitten, anti-venom administered to mitigate physical effects. Details Source confirms no recollection of dreaming during the week, despite a history of recurring dreams. Subject immediately experienced vivid hallucinations for approximately 11 minutes. Upon returning to normal, described hallucinations with great detail. Source later questioned and confirmed that the described hallucination matched the description of source's recurring dream. Date Expunged Source D-21-389 Male African American, 48 years old Subject D-21-395 Male Caucasian, 26 years old Procedure Source selected due to known diagnosis of post-traumatic stress disorder as a result of combat experiences and data expunged. Subject confirmed to have no military experience or interest. Details Source confirms no recollection of dreaming during the week, despite previously having recurring nightmares. Upon being bitten, subject experiences vivid hallucinations and is restrained after beginning to scream and thrash. After returning to normal after approximately 14 minutes, subject describes hallucinations as being in a combat zone while data expunged. The bodies of data expunged. Several details given matched that of standard combat procedures as corroborated by source, which subject had no previous knowledge of. Lesson Complete If you missed the previous orientation, go watch SCP-451, Mr. Lonely, right now. Or for the complete course, watch this playlist.