"I'm just taking a guess here, but I'm going to say magic."

What else could it be? They hadn't shambled out of some lab...well, okay, technically they had. But they were just regular cadavers.

"It wasn't like they were alive, there was no evidence of actual thought or intent. They didn't attack anyone, even though we were literally cutting into them when they...woke up. It was weird, honestly."

Compared to how Nadine is used to zombies acting, with her limited experience.