Matthias looked up from the floor at the knock, mid-push up. The only person who showed up unexpected and knocked on his door like that was Dutch, but he'd told her he wasn't comfortable being near her while he had such potentially fatal powers.

Still, he wasn't going to just leave her out there, so he stood and went to the door, opening it without bothering to look out the peephole.

"...Nina?" he said in surprise. She looked a little flushed. "Is something wrong?"