Registered Phenomena Code: 373

Containment Rating: Gamma

Lethality Rating: Black1
h-climatological.png Climatological h-transmutation.png Transmutation h-biohazard.png Bio-Hazard h-corrosive.png Corrosive h-toxic.png Toxic h-gravitational.png Gravitational h-ideological.png Ideological


Image of RPC-373 has been removed due to possible cognitohazadous elements.

Containment Protocols: The following file in its entirety is restricted to Class 4C personnel and above, and it is to remain on a need to know basis. Access to RPC-373's document must be approved by the Director of Site-042 or a member of the Global Directorate. Personnel involved with Protocol 373-01, the Nivaldi cultist used for the containment of RPC-373, and CSD personnel used as resources are to be given Class 0 affiliation clearance. The primary focus of RPC-373's containment is the bi-annual completion of Protocol 373-01, The Ritual of Ctheter.

RPC-373 is contained beneath Site-042 in a naturally formed solutional cave system.2 Direct access to RPC-373's cell interior is to be restricted to Nivaldi cultists and CSD personnel under the cultists' supervision. The cell is to only remain accessible one week before and after the summer and winter solstices.3 During this time, Protocol 373-01 is to be completed, and the chamber resealed.

Sole access to the cave system that leads to RPC-373's containment cell must be patrolled by MST Delta-01 "The Keepers" on an hourly basis. Standard video surveillance must also be used to monitor the tunnels leading to RPC-373. In the event the ritual fails, and the entity enters an active state, charges placed inside the access tunnel and in RPC-373's cell are to be detonated in an attempt to seal the entity. On-site nuclear payloads are to be detonated in the event all current containment protocols fail.

Due to the sensitive nature of The Ritual of Ctheter, on-site personnel assigned to RPC-373's containment are to undergo a series of psychological evaluations prior to being given their assignments. These individuals must be without children, circumcised, and have a broad understanding of Jewish and Christian beliefs. After three months of duty, personnel are required to take one month of leave and seek routine counseling.

Description: RPC-373 is a forty-meter tall, anthropomorphous entity of unknown origin. The entity's body is similar in appearance to that of humans with the addition of several various forms of limbs and faces on all four sides of its head. RPC-373's limbs number at six arms, twelve forearms, twenty-four hands, eight legs, and eight wings. Each of RPC-373's limbs are covered in eyes of various sizes. The largest of these eyes are on the center of the entity's palms and along the joints of the wings.

RPC-373 has a face on the anterior, posterior, and lateral sides of its head.12 Each face is positioned in the direction of cardinal North, East, South, and West receptively. RPC-373's neck never turns, and each face is permanently fixated towards its corresponding region.

  • The dominant North face of RPC-373 depicts a fair-skinned male with blonde hair and blue eyes. Personnel who view the dominant face often remark on its splendor and beauty. A faint glow of ten lumens has been observed emanating from the face.
  • The West face depicts a Bos taurus13 with pronounced horns and thirteen (13) eyes. The eyes are arranged in a circular pattern. The most prominent eye rests in the center of its face with each of the smaller eyes placed every 30° around the center eye.
  • The South face depicts a young woman with a similar complexion to the North face. Its eyes appear to have late-stage cataracts. The breath of the South face is caustic and is believed to be the cause of the corrosive nature of RPC-373's containment cell.
  • The East face depicts a Panthera atrox14 with elongated features and pronounced canines. The East face has six opaque symmetrical eyes on the side of its head.

Four golden rings of various sizes rotate around the entity at a speed of 27.75 rotations per hour. The two largest rings encircle the entire entity at 45° and 315° angles. The next largest circle rotates around the entity's waist. The last golden ring appears to float one meter above the entity's head and radiates a previously unknown form of radiation. Researchers are currently unable to study the composition of the rings. When approached either directly or remotely, the rings become incorporeal. [See Incident Report 37301-92]

Rock samples taken from the cave's main chamber have led researchers to believe the structure is ~3000 years old. It is currently believed that while the cave system formed due to natural means, RPC-373's chamber was constructed explicitly for its containment. The air inside of the chamber is highly corrosive and toxic, and the chamber only becomes safe to enter one week before and after the summer and winter solstices. It is not currently known by Researchers or the Nivaldi who initially contained the entity. RPC-373 has remained completely inert ever since its discovery by the Authority in 18██. According to the Nivaldi sect discovered alongside RPC-373, the entity has remained dormant for over 2000 years, and they have devoted their lives to ensure the entity remains in its inactive state.

Authority: Site-042 Director, Fields
Reasoning: Currently, all direct interaction with RPC-373 not related to Protocol 373-01 Ctheter has been prohibited. All attempts to study or interact with RPC-373 have resulted in catastrophic failure. Due to the volatile nature of the entity, RPC-373 has been assigned threat level Black.

Καὶ εἶδον, καὶ ἤκουσα ἑνὸς סַמָּאֵל πετομένου ἐν μεσουρανήματι λέγοντος φωνῇ μεγάλῃ Οὐαὶ οὐαὶ οὐαὶ τοὺς κατοικοῦντας ἐπὶ τῆς γῆς ἐκ τῶνλοιπῶν φωνῶν τῆς σάλπιγγος τῶν τριῶν פרש ἀγγέλων τῶν μελλόντων σαλπίζειν.

Then I looked, and heard an angel flying through the midst of heaven, saying with a loud voice, Woe, woe, woe, to the inhabiters of the earth by reason of the other voices of the trumpet of the three angels, which are yet to sound!

Inscription on the door to RPC-373's chamber

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