The two had the same thoughts, and Ling Lan quickly raised her concerns.

I always feel like I'm ignoring something, and I can't remember it for a while.

"It's okay, let's keep people under surveillance first, and don't delay continuing the investigation." Mo Ziyu said calmly.

Ling Lan nodded slightly, silently acquiescing.

Seeing that the other party turned around and went back, she suddenly remembered something, and said in a low voice: "What about you!" No clues? ”

Others don't say it, but the seventh brother in Xiaohe's mouth obviously knows.

"It's unreliable to have different opinions, but there is a guy named Lin Qi who should be lying, and I'm going to monitor it together." Mo Ziyu stopped and whispered in response.

Ling Lan took a few steps out, guessing that Lin Qi was Xiaohe's seventh brother, and he was also the man who was in the stone forest before, and it was normal for the other party to lie, it should be that he wanted to hide Xiaohe's indirect killing of Yuqing.

"Okay, let them go back first!"

"Hmmm! Let's go to the cave again. ”

Ling Lan had this intention, and made an OK gesture because she was thinking about something.

Mo Ziyu raised her eyebrows slightly: "What does this mean?" ”

Immediately withdrawing her hand, Ling Lan smiled awkwardly: "It's nothing, I'll wait for you over there." ”

Seeing her turn around and walk away, Mo Ziyu's deep eyes surged with light, how many secrets are hidden in this eccentric girl?

Two quarters of an hour later, a mahogany carriage slowly stopped at the foot of the mountain, Mo Ziyu got out of the car first and raised her hand to pick her up, but Ling Lan avoided the other party's hand and jumped down sensitively, and her shoes suddenly fell into the dirt and became dirty.

The man joked with a smile: "If you accidentally lie on the ground, it is estimated that your hands will have to be raised for another month." ”

Ling Lan pursed her lips: "Crow's mouth." ”

The road up the mountain was not easy to walk, Ling Lan was holding on to the trunk of the tree with one hand, and Mo Ziyu was worried that her feet were unstable and she had been following her unhurriedly by her side.

"No wonder the maidservants' shoes were covered with mud and their clothes were so dirty, and they all walked like this." She gasped slightly.

"That's right, it can also be seen from this that your previous analysis is correct, they all walked over by themselves, and it is very likely that an acquaintance committed the crime."

After a pause, Mo Ziyu became meaningful: "If you are an acquaintance, it must be someone from the Four Princes' Mansion, and you are familiar with the maids who were killed and are deeply trusted by them, but there is one thing I have never been able to figure out." ”

Finally came to the vicinity of the destination, Ling Lan simply stopped and rested against a big tree, waiting for the other party to continue.

"What was the reason for the killing? According to the investigation, these handmaidens have no other relationship with each other except that they entered the house together, and they all work in different places, and they don't have much intersection on weekdays. ”

Cause?

Ling Lan chuckled: "If you follow Xiaohe's story, these three people are all related to the dead Yuqing." ”

Mo Ziyu frowned obviously: "You mean, the ghost's revenge is the reason?" ”

Something flashed quickly in her mind, and Ling Lan knew that she must have overlooked something important, but no matter how she thought about it at this time, it was fruitless.

Shaking her head slightly, she muttered that it wasn't this.

There was a conversation not far away, and Ling Lan slowly retracted his thoughts, it was Tianyi's voice!

The two stopped communicating and continued to walk forward, and after a distance, the entrance of the cave finally came into view.

This is a flat position halfway up the mountain, the diameter of the cave is about two meters, and the surrounding area and the cave wall are covered with green vines, which are difficult to find if they are covered.

"There is a section inside that is very low, you need to bend down to pass, and then it is spacious again, and it continues to narrow again, and the small Xiaoice room is the end, and the whole is like an upside-down gourd."

Walking inside, I found that Mo Ziyu's explanation was very appropriate, and when I stepped into it, I found that it was very spacious, and the people from the Criminal Department were still looking for something in the corner, and they said hello before and walked forward.

After walking out of a certain distance, the surrounding space has become significantly narrower, from the width of a dozen people walking side by side to a narrow passage of about half a meter wide and about one and a half meters high.

"There is limestone under my feet, and there were traces of friction on it, but now the traces are much lighter." Mo Ziyu opened her mouth to remind.

Because there was only one way to go, they had been inside with Xiaotian before, and when a dozen people walked together, it would naturally destroy those traces, but there was no way.

Ling Lanzheng sighed that the terrain here was strange, and when she heard the man's words, she immediately lowered her eyes to check, it was indeed gray-white limestone, she squatted down and took a closer look, it was almost destroyed...

Continuing to walk forward, Ling Lan knocked her forehead because she didn't grasp the height well, and she gritted her teeth in pain, secretly saying that she really didn't know what to do in this broken place.

Oh, yes! These handmaidens are all young girls who are very smart, they should not be easily deceived, what would be the reason for voluntarily coming to this kind of place?

She racked her brains and didn't have any thoughts, could it be that Yuqing's ghost brought them over?

Thoughts flashed and she couldn't help laughing, but fortunately she just thought about it herself, and if Mo Ziyu knew about it, she would say something about her.

After a while, her eyes suddenly brightened, and she finally walked the narrow road, but soon she was stunned in place, looking around, and her heart was extremely shocked.

Under the light of the kerosene lamp, the top of the cave sparkles, like a star at your fingertips, and the beauty is thrilling.

"It's a luminous stone, it glows in the light, and there are strange-shaped stones over there, which are very interesting to look at." Mo Ziyu explained in a low voice.

Ling Lan was still looking up at the top of the cave, as if she was standing under the starlight, with the illusion that she could pick up the stars with her hands, thinking about subconsciously raising her hand but it was still some distance away.

The surroundings gradually became spacious, except for the shiny top, there were indeed many strange stones, vaguely like animal shapes but not very distinct, Ling Lan couldn't help but be full of curiosity about this hole.

"Are there any legends here?" She asked in a low voice.

"No, not many people know about this place, in the past, woodcutters who cut wood have stepped into the cave but did not come to this section, they all stopped in front of the narrow section, afraid of unknown dangers and did not dare to go deeper." Mo Ziyu raised her hand and swiped across the smooth surface of a stone and responded in a low voice.

Ling Lan was surprised in her heart: "Then when it comes to limestone, Ye Feng quickly thought of this, how could he know?" ”

"He remembered this place very well, because he was injured and accidentally went to the cave to take refuge, and unknowingly went to the depths, but there was no ice in it at that time, apparently someone deliberately put it in later."

No wonder, Ling Lan knew it, and at the same time felt that it was quite dangerous to do things in the Criminal Department.

"The clothes of the three slain maids were found in the corner over there." Mo Ziyu raised his hand and pointed.

Looking down his fingertips, there was the edge of the cave wall on the left.

"It must have been thrown by the murderer." Ling Lan muttered.

Mo Ziyu nodded: "The more obvious clothes and shoes were thrown into the corner by the murderer, and other small objects were found inside." ”

Regarding this, Ling Lan couldn't guess the murderer's thoughts.