Do you notice the space you walk through every day?
Have you ever felt like there was an itch inside your head?
Do you ever think about what is going on there, deep inside, where you can't go or even see?
This is a story about how the Foundation doesn't always know why things happen. It is kind of a thematic sequel to SCP-2365.
Many thanks to MrWrong for feedback on the forums. The image is from Wikipedia here, by mdomingoa, and is on a CC-by-SA 4.0 licence.
ETA: if you came here from the features page, and enjoyed this, why not check out my other SCPs and tales. You can find them at my author page.