Slamming the door, he stepped back, staring with apprehension at the small window looking into the lab, through which he could still see the swarming purple things. It wasn't until his back bumped against the opposite wall of the hallway when he finally snapped out of it. He turned his attention to Lucca, as if suddenly noticing her there.

"Um, uh... th-those..."

He raised one arm and pointed at the window, toward the glowing purple blobs.

"...What are they?"