Their script is different from ours. It might be the same species, just like the general term 'human', but there are many different languages among humans, so even if they are the same, they may not be able to communicate.
Promised Qinghan to try 'sign language' the next time we see the shadow, but until we reached the Ancient City, we hadn't encountered that kind of shadow again.
The path Qinghan chose could indeed lead to the Ancient City, and we did not run into any obstacles along the way.
Everyone was very pleased; not only was there a cool underground passage to the Ancient City, but we also didn't encounter any danger along the way.
Saying we arrived at our destination like a sightseeing train wouldn't be an exaggeration. We've inspected the stops along the way, most of the exits were blocked, and a small portion of the waiting rooms have already collapsed, unknowingly connecting to outside.
