"Beep! Beep!"
After a series of screeching sounds, a sharp warning whistle followed, blowing from outside the carriage.
With a clatter, a group of people in the office carriage quickly opened the door and dashed out with Locomotive Captain Bob, seeing dozens of men in black uniforms running through the carriages, their expressions very serious.
"What's going on?" Bob asked one of the men in black uniforms closest to him.
The other didn't answer directly, he just pointed out the window: "See for yourself!"
Everyone immediately looked in the direction he pointed, although they were somewhat prepared in their minds, they couldn't help but be startled.
On the side of the tracks, in the left front of the locomotive, about a few hundred meters away, a group of beasts was approaching with low growls.
