The soil had been freshly filled in.
Even an abandoned well did not need to be filled this high.
Xu Changyi had come to Capital City on business roughly ten days earlier.
He had stayed at the Guesthouse across the street for nearly a week.
If he had gone through this little gate to stroll around the school grounds during his stay, then...
That well would have been within his line of sight.
He had left those six digits behind.
He must have seen something in this well numbered "320."
But he might not have thought much of it at the time.
Or rather, he had not realized that he had accidentally stumbled upon their secret.
Only as he lay dying had he realized... this was the reason they had attacked him, and he had struggled to leave those six digits behind.
Yet they had been terrified that he might reveal their secret.
They would rather kill an innocent man than let him go.
They had hunted him until he died.
Only a few days had passed since Xu Changyi was attacked.
Yet this well had already been completely filled in.
They had even tried to cover up the well lid.
That only proved that an important secret lay underground.
The discoveries beneath Jin City had already been staggering.
Now, if there was also a base beneath this area, it was probably no less important.
The orders were quickly relayed to the North China Military District.
Forty minutes later, Tang Wei arrived first with a dozen plainclothes personnel at the post office at the intersection of Changhui Street and Wenhua Street.
Gu Zheng had temporarily requisitioned an office there.
Detailed maps of the Third Normal College and its underground air-raid shelters lay on the desk.
Only then did they discover