Fourth Master and Alhatu's men had been searching the mountains and forests surrounding Pengyue Gully for three days, but still found nothing. The dozen or so hunting dogs were all the best they had been selected. After they were allowed to sniff the rags stripped from the dead, the dogs led Fourth Master and his men to search the mountains and forests.

One day, Fourth Master and his companions suddenly encountered two young men carrying digging shovels in the mountains. When asked why they were there, they gave evasive answers and couldn't explain. It was only after Cui Da scared them that they finally told the truth: they were ordinary people who had heard there were treasures in the mountains, so they came out to dig for treasures for others.

Seeing that their conversation was interesting, Fourth Master pulled the two men down for further questioning and finally got the information. It turned out that someone had discovered an ancient tomb in the mountains and hired many local young men to dig for treasure. However, some were unlucky and fell into the tomb's traps, dying in the process. These two men had escaped and were heading home.

Fourth Master ordered these two men to lead them to the treasure-hunting site, but the two men refused to go no matter what.

“Grandpa, we don’t really remember that place. We just ran away and wandered around aimlessly. That’s how we ran into you. We’re completely disoriented. Please, sir, have mercy and show us brothers a way down the mountain and home,” the older young man said. “I have parents and a young son to support. I don’t want to die in some unknown place.”

His words were very moving, and even Cui Da said, "Master, these two don't seem to be lying, so let's not make things difficult for them."

Fourth Master stared at the two men and suddenly said, "What are those things you're carrying on your backs? May I take a look?"

These words were spoken very politely. The man was taken aback, then quickly nodded and said, "Of course we do. This is an iron shovel for digging up treasures. We found it useful, so we brought two with us." After saying that, the man handed the iron shovel to Fourth Master.

Fourth Master grabbed the man's hand, straightened his palm, and examined it. The man's expression changed slightly, but he didn't dare to resist too much, so he had no choice but to let Fourth Master look at his palm.

Seeing Fourth Master's actions, Thirteen and Cui Da rushed forward and surrounded the man. The other man, seeing them surround his companion, panicked, dropped his shovel, and turned to run. However, he had no chance of escaping; he was surrounded by well-trained soldiers of the Bordered Blue Banner. After only a few steps, he was forced to retreat.

"The calluses on your palms don't look like the hands of someone who's used to wielding a sickle and rake all year round. They look more like the hands of someone who's practiced martial arts," Fourth Master asked in a deep voice, pinching the man's tiger's mouth.

The man, still trying to remain calm, argued, "Sir, what are you saying? You must be mistaken. I don't know any martial arts."

Thirteen grabbed the man who was trying to escape, pulling him by the collar and saying, "Then why are you running?"

The man was so frightened that he looked like he was about to cry, and he said in a trembling voice, "I'm just scared, scared!"

Fourth Master slowly lowered the man's hand. Just as the man relaxed and thought Fourth Master believed him, Fourth Master suddenly threw a punch straight at his chest.

Sure enough, the man hurriedly retreated, but unfortunately, he didn't manage to do so in time and still received a punch from Fourth Master.

"Sir, why did you hit me? I've told you everything," the man said, clutching his chest with a pained expression.

"Thirteen, tie him up! If he doesn't tell the truth, hang him here and let the wild beasts eat him!" Fourth Master shouted.

The man, unable to fathom the Fourth Master's temper, was so frightened that he immediately knelt down and kowtowed repeatedly, pleading, "Master, Master, spare my life! Spare my life!"

“I just punched you. If you don’t know any martial arts, you couldn’t possibly have dodged a fatal blow. Do you think I’m blind? Tie him up!” Fourth Master’s sharp eyes stared at the man like an eagle.

Seeing that Fourth Master had recognized them, the two men quickly begged for mercy, saying, "Sir, I'll talk, I'll tell the truth."

Fourth Master looked at them and said, word by word, "If you tell even half a lie again, I will not let you off easily."

The man hurriedly replied, "Reporting to you, sir, I am a guard of Prefect Su."

Fourth Master and Thirteenth Master exchanged a surprised look, and then immediately asked, "Lord Su! Is he Su Fusheng, the Prefect of Yangzhou?"

The man nodded repeatedly and said, "It is indeed Lord Su Fusheng. Lord Su heard somewhere that there is a large tomb in these mountains, said to be from the Warring States period. So Lord Su got the idea and found a geomancer to search for the large tomb all over these mountains. Lord Su called us here to dig for treasure for him, but the tomb is too big, and there are not enough of us, so we had to secretly capture some strong farmers from the surrounding area to dig for treasure for Lord Su."

Fourth Master, Thirteenth Master, and even Al-Hatu were all extremely curious about this man's words, and they all stared at the two men, signaling them to continue.

“Our responsibility is to supervise these able-bodied farmers as they work. We just got lost and couldn’t find our way back, but we didn’t expect to run into you all,” the man said, bowing his head.

"Did you throw the dead bodies into Pengyue Ditch?" Cui Da couldn't help but ask.

"What is Pengyuegou?" The man did not know the name of the ravine.

Fourth Master didn't want to mention it to the two of them, but since Cui Da had already asked, he had no choice but to continue asking, "The corpse in that ravine over there?"

"Oh, oh, those dead people. They accidentally triggered a mechanism in the tomb and died inside. Lord Su then ordered us to throw those dead people off the cliff." The man immediately understood and hurriedly said.

Fourth Prince, Thirteenth Prince, and Alhatu all looked as if they had just realized something. Although the imperial court did not encourage tomb raiding, it was not illegal. Tomb raiding was rampant in various places, and the imperial court did not care.

"Your Lord Su is truly audacious, daring to secretly gather able-bodied men to dig his grave," Thirteen said. "And were all those missing people recruited by him?"

It turns out that grave robbing is considered extremely immoral, and most people are unwilling to do it. Therefore, it's usually done in secret. This explains the disappearances of those people.

“Take us to the place where the grave was dug,” Al-Hatu said.

"Sir, we're really lost. We can't find that place anymore. We just remember it being near a protruding rock in the northwest," the man said.

"Fourth Prince, let's have these two lead the way. It seems that this was most likely done by that Lord Su. Although the court doesn't pursue grave robbing, so many able-bodied men died. As an official of the court, he treated human life so lightly; he truly deserves to die," said Alhatu.