In the tunnel's direct front, two giant banners appeared mid-air on both sides.
Their size was somewhat similar to highway billboards.
Large characters were written on them.
"Flesh and Blood Train Prohibited from Entering."
Dozens of large-caliber cannons and over a dozen high-speed cameras were embedded next to the billboards. Clearly, if a Flesh and Blood Train was detected, those cannons would immediately open fire.
However...
The dust on those cannons had nearly formed into amber. Could they still be activated, and at what level? It was unclear.
"..."
Chen Mang narrowed his eyes slightly, withdrawing his gaze from the banners on both sides, gradually slowing down. It was now fairly certain; this was not a civilian Train Tunnel but a wartime military tunnel.
But the issue now was...
