"I can confirm that this place is a passageway."
" Moreover, this passageway was left behind from ancient times. Look at these runes. "
Yun Yaoyao and Tang Zimeng supported Li Lingtian as they flew quickly through the passageway.
In front of them was a naturally formed cave passage. It was about 20 to 30 meters high and 100 meters wide. However, after entering for dozens of miles, there was a man-made passage.
This man-made passage was 20 meters tall and 50 meters wide. It was made of hard stones, and it was a whole piece. It was as if a passage had been dug out of a huge stone.
There were fluorescent stones in the passage, illuminating the passage.
This way, Li Lingtian and the other two could see everything inside clearly. The stone wall was reinforced by a mysterious and powerful array. Even a Demigod powerhouse would not be able to move the wall.
From the words on the formation, this passage was at least from ancient times and not modern times.
