An Army we can use, or Agianst Us?

What was the meaning of all this? The students couldn't quite understand the words coming out of Joe's mouth. How could there be students in the courtyard apart from them?

All headband students, including those of the second year, had taken part in the latest assessment, and with it, they were now the only ten students at the academy. It had been that way yesterday and so far today.

"Wait, do you mean like there are zombies out there or something?" Liam asked, his face covered in sweat. Until this moment, he had been training hard with Simyon.

"Yeah, maybe he means they finally brought their dead bodies back," Simyon replied.

To which, Joe nodded, and following out of the building behind him, one of the red headband teachers emerged.