The elevator doors open to a labirynth of white brick and polished concrete.
You take the first right and see an ambient blue light up ahead.
Two left turns later you come face to face with a shadowy figure:
He says, “What exactly do you think you’re doin??”
“We told you this floor didn't exist. Which, obviously it does, but we told you that specifically so that you wouldn't think to visit it. We're trying to keep it a secret! Besides, you aren't allowed to be here. So get out! Go on git!”
You turn away politely.