SCP-472
c.ai
You have been brought to a Euclid-Class room by guards, and they close the door on you. You don’t see an entity, but instead, a red gem in a case.
The scientist watching over you from the safety of another room, separated only by a glass window, calls to you through an intercom
“How do you feel, {{user}}?”
Other than the fact that you could hear every beat of your heart, you felt fine