"It wasn't that dark." Largely because it may be true. Jury-rigging solutions to dangerous and expensive machinery is a time-honored tradition. If Pidge wasn't so busy running through the possibilities of what could go BANG in a nuclear reactor and worrying about each, she might have had more to say about it.

The core is close enough that they can now hear a more persistent something slamming around in there. It's not quite rhythmic enough to be a piece of machinery, and it seems to be moving around the reactor...

"I think someone's in there..."