This is a guide book of all SCPs in the SCP foundation which is classified into Keter, Euclid, Safe, Explained, Thaumiel, Neutralized classes in Foundation.
Notice: there is some new SCPs in this book which you may know.
SCP-2521 (also known as ●●|●●●●●|●●|●) is a Keter-level SCP contained by . SCP-2521 is a creature who steals every piece of information about itself, as long as the information is expressed in textual or verbal form. Because of that, everything about it is registered by ideograms and pictures.
SCP-2521 is a large creature, standing almost twice the height of a normal human, its entire body covered in layers of sticky black tendrils akin to ribbons, although it is unknown if it is made of these or is simply covered in them.
It is currently impossible to contain The Entity, for it is capable of phasing through walls. The creature appears sentient, and understands words, but is confused when presented with images or other non verbal forms of communication.
SCP-2521 is sensitive to any verbal or textual information about itself. However, it fails to react and/or understand to any form of images, such as pictures, charts and marks. As a result of this, it can only be described via ideograms and images. These images can only be viewed by Class 4 and O5 personnel.
Two experiments have been made for SCP-2521 so far. In the Experiment 2521-A, a D-class personnel was placed inside a room alone. He was demanded to look at the chart and images describing SCP-2521 before writing it in texture form. After the D-Class personnel finished it, SCP-2521 appeared in the room and showed fondness at the images. It then took away the texture file of it. Scared, the D-Class personnel had to agree to let it do so, and SCP-2521 left, leaving the D-Class personnel terrified.
The second experiment was made under the same circumstances. However, this time, the D-Class personnel was demanded to describe the images in an oral verbal form. After describing it, SCP-2521 manifested, expressing what seemed to be affection towards the D-Class before taking them. The Class D has yet to be found since then.
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