The squad leader and his three warriors quickly disappeared behind the hillside, but at that moment, Mr. Liu heard the muffled rumbling coming from inside the mountain again.
"Did you hear it? It sounded again!" Mr. Liu immediately turned to look at his deputy platoon leader, who nodded solemnly.
"Squad Leader! There was a sound coming from inside the mountain again just now! Did you find anything over there?" Mr. Liu shouted into the walkie-talkie.
"Report, we found an abandoned construction site that seems to be the subway halt mentioned by Lee," replied the squad leader, referring to the soldier from Kuqiao Village, "The underground entrance at the site has relatively 'fresh' landslide marks, and for safety reasons, we plan to send a drone inside to investigate."
"Alright, be careful. We're ready to support you at any time," Mr. Liu replied.
"Mr. Liu, what's your take?" The deputy platoon leader pulled out his handheld information terminal and glanced at the screen.
