You step outside, and Sally is leaning against the wall just in the corridor next to your office. She snaps to attention as soon as she sees you.
"Have you been waiting here since you left?"
"I… uh, yes, I have."
"Fair enough. Would you like to come help me look at 3939?"
"Are you, like, telling me to, as my boss? Or are you asking me?"
"I'm asking you. You don't have to."
She mulls it over for a moment. "Sure."
You and Sally make your way down to PC01 and find SCP-3939's cell. You swipe your card across the scanner. Red light goes green, something goes click, and the door slides open. The gentle breeze as air flows into the room ruffles your hair.
The doorway stays pitch black for a moment, and then the ceiling strip lights flare on. Sally physically flinches in response, and you struggle to contain a smirk as the bar light on the right flickers gently. You both step into the room.
It's exactly the same as before. You'd be surprised if even a single fleck of dust had moved since yesterday. Brass horn pointing right into your face, octagonal wooden base, vinyl record spinning in place. You hadn't noticed yesterday (probably because there's nothing to notice), but the record doesn't have a sticker on it.
"What do you need me for?" Sally asks, turning to you.
"We need to run a few simple tests on this thing. At the minute, we don't know why it's anomalous, so we need to find out."
"We don't know anything about it?"
You shake your head. "We do not."
You can tell that she's keenly aware of how unusual this situation is, but she keeps her mouth shut about it, assuming that you know better, which you do not.
What's first?