"Okay." she said with a shrug, and then looked around. For about four seconds, she vanished down the hallway, disappearing with the unconscious man to lock him into a closet and seal the door. He wouldn't be waking up for a while anyway. Plenty of time to get him out later. When she got back, the door was open, and she came to a direct stop beside Kal, looking into the room.
"So." she said, looking around the room neither of them were entering. "How about we just...blow that tarp away?" she suggested, with a questioning look. It could make a mess in the process, but they would see what's under it. And who really cares if they trashed the room? They had insurance, right? It was Lex's building, he could cover it.
Or Kara could just go in first, and see if it was Synthetic or not. All she knew was that she was really curious to see what was being hidden under there.