"Let's pack up and get ready to go down. We'll leave this area to Captain Lu for now," Ling Yunjue said, immediately giving the order.

He selected 50 people to go down with him.

Ye Zhaoyu followed behind Ling Yunjue, her body covered with poisons and sedatives.

There was only one road, and there was no danger along the way.

After traveling at high speed for more than two hours, we suddenly heard voices coming from afar, and a man was humming a tune.

Ling Yunjue signaled to stop, retreated to a bend, and prepared to arrest the person.

In the pitch-black tunnel, only the man's cheerful singing could be heard.

The singing stopped abruptly.

Soon, a man's voice begged for mercy, "Big brother, spare my life! Ask me what happened, and I'll tell you everything." When the man saw the dense array of eyes in front of him, he knew that what he had done had been discovered, so he could only quickly beg for mercy.

"Tell me everything you know," Ling Yunjue asked sternly in a low voice.

“Okay, okay, I’ll tell you. We’ve been doing this for 15 years. Each time, it’s the same person who comes to receive the goods. They only want rice, flour, and salt, nothing else. They deliver the goods once a day, and each time it’s only about 50 jin of grain and 2 jin of salt.” The man immediately told him everything he knew.

Ling Yunjue asked a few more questions, and after the person answered indifferently, he instructed Ye Zhaoyu to drug the person, tie them up, and leave them aside, to be brought back when he returned.

"Do you want to go back? It's probably very dangerous down there," Ling Yunjue said to Ye Zhaoyu.

The fact that no oil is needed suggests that there is a source of oil or that some animals are being raised inside. In any case, it indicates that there may be more than 50 people inside. They only brought 50 people with them, and it's unclear when reinforcements will arrive.

The number of people is uncertain, so the danger is uncertain.

Ling Yunjue speculated that it was calculated based on the ratio of rice, flour, and salt.

Why do they need rice, flour, and salt delivered every day? Perhaps what they need most isn't necessarily rice and flour; this is just a distraction. Salt is the real key ingredient.

Otherwise, if you use two catties of salt a day, and you eat 50 catties of rice a day, you can use a maximum of one catty of salt a day, which would kill 30 or 40 people. So where would the remaining catty of salt go?

A rough estimate suggests there are at least 100 people inside, but whether all of them are combat-ready or only some are, and what weapons they possess, is unknown.

The uncertainty is too great. Ye Zhaoyu isn't in their department, so it's not too late for her to leave.