The passage inside the tunnel shimmered with lights of various colors, clearly not formed naturally, exuding a strong sense of technology.
Ling Feng was momentarily stunned upon seeing it, not expecting the underground people to possess such advanced technology!
Initially, he thought they were like primitive aborigines, but now he realized that it was his own lack of knowledge, and he had underestimated them!
The underground people once again saluted Ling Feng and Li Fei'er, then slowly lined up and entered the passage, disappearing quickly.
As the last person entered, the rock slowly closed, returning to its original state, and Ling Feng was still a bit dazed.
Li Fei'er was slightly better off than him, and she turned back smiling: "Uncle, you saved them, and they said they would never forget your kindness and will repay you in the future!"
"At first, I thought it wouldn't be of much use, but now it seems there might actually come a time when it is needed!"
