A tree as thick as a water barrel slowly pulled out its roots, then furtively stepped onto the train tracks. Seeing no one was paying attention, its movements became increasingly bold, and the dense leaves rustled noisily.
After wasting an entire night, it had finally moved itself from a low-lying pit to the highest place nearby.
Between two rails supported by gravel.
It didn't understand why humans spent their time piling up this useless gravel rather than enjoying sunlight and rain. However, its sluggish mind couldn't comprehend these things; it only knew that acid rain wouldn't accumulate under its feet.
Suddenly, a rhythmic vibration came from afar.
This feeling was very familiar.
The vibration got closer and closer.
The two rails trembled, making its stem and roots numb, unable to penetrate the gravel properly.
But it finally figured out what it was.
"Boom—"
