May 9
If you find yourself wandering long enough in the Backrooms, you may start noticing the movement in the corners of your vision. Insects that seem to blend in with the patterns of the endless walls and carpets skitter about, barely noticeable.
Are they really there? It's not so impossible. After all, many species have evolved to live in the basements and attics of human homes. It is likely that populations of them have gotten trapped in this strange dimension the same way you did. Time dilation and other anomalies could lead to their accelerated evolution.
... Or perhaps you're just hallucinating out of lonely desperation to see something... Anything...