In the Ice Age Apocalypse, I Hoarded Billions of Supplies Chapter 511: The Investigation Team's Dilemma

Zhang Yi retrieved the video recorded by the mechanical mouse and played it on the large screen for the investigation team to see. After witnessing that scene, their expressions all turned grave. Although the mechanical mouse’s perspective couldn't capture the full scale of the zombie horde, it had run through several subway tunnels, and the zombies sleeping inside filled the entire length of…