- SCP-207 - Cola Bottles
- SCP-325 - The Detergent
- SCP-521 - The Postbox
- SCP-712-J - Memetic Post-It note
- SCP-2383-J - Science
- SCP-2383-J-T - Science Test Log
SCPs Under Investigation
SCP-102: Transmogrification Disease
Item #: SCP-102
Object Class: Euclid
Special Containment Procedures:
Item #: SCP-521
Object Class: Euclid
Special Containment Procedures: SCP-521 is to be stored in Secure Items Locker 15 at Site-39. The battery level of the GPS beacon attached to SCP-521 should be checked monthly, with a new module fitted as relevant. The steel plate covering the letter slot of SCP-521 is to remain in place outside of authorized testing.
After activation, SCP-521 is to be retrieved from its new location and placed back in storage. SCP-521-1 onwards are to be held in Archive 4 of Site-39, with digital copies made available on the Foundation intranet. Access to these documents is not restricted (SCP-521-27 is an exception, see below).
Description: SCP-521 is a red postbox, of a design commonly used in the United Kingdom by Royal Mail. Retrieved from ██████████, England, test results show SCP-521 does not differ in composition from a standard post box of the same design. SCP-521-X refers to the items received during activation of SCP-521, see below for more information.
SCP-521-X are to denoted numerically and stored per procedures above when retrieved.
When a letter ('letter' here defined as a piece of paper contained within a suitable, addressed envelope) is inserted through the letter slot of SCP-521, the anomalous effects of the object will activate. No other items inserted into SCP-521 will cause activation of the object. All letters must be addressed from one (1) subject to another directly. Letters sent from a singular subject to a company or representative of a company do not cause SCP-521 activation, or vice-versa.
Up to 24 hours after time of posting (regardless of stamp value used), the posted item will arrive at its destination, along with any other standard mail items. The postmark on the envelope is not that of the Royal Mail company, but one similar to [REDACTED]. However the original letter posted will not be found inside the envelope, instead replaced with an instance of SCP-521-X.
SCP-521-X appear to be letters written during periods of conflict, often addressed from combatants to family members or friends. Comparison of historical records places the bulk of SCP-521-X items as occurring during World Wars 1 and 2, see Addendum 521-E for examples. An exception is SCP-521-27, see Addendum 521-7 for more information.
Once a suitable letter has been posted and delivered, SCP-521 will disappear from its current position, and reappear elsewhere inside a urban location within 150km. Its current method of movement is unknown; however, any obstruction to the letter slot is removed during transit. No other parts of SCP-521 are affected during its transit. Any mail items posted between activation and delivery will be processed normally. After SCP-521 has completed a transition to another area, its effect will activate on the next suitable piece of mail.
Addendum 521-E: Below are short excerpts from letters received during testing of SCP-521. Copies of the original letters are available to be viewed on the Foundation intranet.
I told you in my airgraph a little about the journey here. Of course, I must not mention place names or any vital details. The boat trip did not seem overlong in spite of the confined space and lack of anything really important to do, but for part of the trip I acted as one of the anti aircraft gunners, doing two four hour turns of watch duty in every twenty-four, one of these, of course, during the night.
Dear Mum, Dad
You must by now be concerned, not having had a letter from me for such a long time. Well the news of the landings in Italy must by now be well known all over England, so I am able to tell you that about seventy lads including myself were drafted into the Foresters to make them up to strength for the assault at Salerno. We only knew that it was for real when a dive bomber shot at us in the landing craft.
SCP-521-31 Redaction present on original letter.
My dearest Pammie,
Thank you for your letter, giving me all the news. I can now give you a little more news from this side.
We have just finished five weeks at ██████ ████ and are at the moment enjoying a rest by the Baltic coast, in the ██████ area. We were given the ██████ job a couple of days after the place was captured and we stayed to burn the pestilential huts to the ground - about five weeks altogether.
Addendum 521-27: During test SCP-521-D4, the retrieved letter was dissimilar to previous examples. Only a short fragment of text was recoverable from SCP-521-7 due to fire damage.
Veronica, I send this letter as it may be my last. I'm passing it onto a civilian detachment headed away from the containment zone in the hopes it reaches you safely. I can't say much, but I just want you to know that I love you so much. I'm sorry for what has happened, I couldn't tell you before all this, but it's our faul-
The letter is written on the reverse of a Kellogs 'Coco Pops' brand cereal box. The partial expiry date present gives an estimated production date of January 21██. The date of the letter's writing is currently unknown.
Item #: ##
Object Class: Safe
Special Containment Procedures: SCP-## specimens are to be housed in suitable terraria at Bioresearch Site 4. Enclosures should contain a minimum of twenty (20) centimetres of soil, with a variety of branches and foliage. Habitat materials should be sourced from plant species resident to the United Kingdom, see Document SCP-##-H for more information. Enclosures should be misted with water at regular intervals of between six (6) to ten (10) hours.
Personnel handling SCP-## should wear full body protection, however no particular hazard protection is required beyond regulation handling procedures. In case of contact, attempt to dislodge SCP-## as soon as possible.
Wild instances of SCP-## are to be captured if possible. However, due to major adverse effects of SCP-## requiring prolonged exposure, containment of individual specimens is not a high priority. All SCP-## nests outside of Bioresearch Site 4 are to be incinerated on discovery.
Description: SCP-## is a species of beetle superficially resembling the Australian species Omma rutherfordi, approximately thirty (30) millimetres long. Recovered from several sites around the United Kingdom, SCP-## has minor differences from Omma ruthfordi at the cellular level, due to inclusion of [DATA EXPUNGED] on the tarsus. All other traits are similar to the Australian species, including reproduction, life span and nesting requirements. A notable exception is a slight yellowing of the lower band on the abdomen of SCP-##, this should be utilised during identification.
Upon alighting on any animal (non-members of Animalia are not affected), SCP-## causes a reaction in the subject's nervous system. Interviews with affected subjects describe the reaction as further specimens of SCP-## alighting upon their body. The number of reported SCP-## in contact with the subject increase in a linear fashion while SCP-## is in contact with the skin or fur of the subject. Multiple instances of SCP-## coming in contact with a subject compound the effect, causing effects to increase exponentially. See Addendum ##-A1 for information regarding exposure.
While not lasting indefinitely, the effect persists for a period of time proportional to direct exposure after contact is severed. Due to the small size of SCP-##, exposure times in natural cases often have short durations, at little detriment to the subject. The reason SCP-## causes this reaction is not currently understood, however current hypothesis suggests it is used as a defence mechanism; by creating an overwhelming sensation on the skin of the subject, SCP-## is able to either move away from an attacker or cause the attacker to move away themself.
Addendum ##-A1: Multiple tests have confirmed that contact with SCP-## for less than three (3) minutes has no long term effect on a subject. However in all cases exceeding this limit, subjects are noted to suffer formication1 at apparently random intervals. This limit has been created utilising contact of a single instance of SCP-##.