The closer it got to the bottom of the Qinzheng Palace, the colder it became, and when it came to a corner, Ning Yunxiao stopped, stomped his feet, and said, "There are no vents in this part of the secret passage, and they have been accumulated for many years, and they are all carbon dioxide, let's wait and go." ”

She opened the exit of the last secret passage, but there were several circuitous forks in a row, and it would take some time for the wind to pour in.

Li Yiyan nodded and took her hand, "It's cold!" ”

"Lend me warmth." Ning Yunxiao stretched her other hand directly into his arms, and she found out when she was drunk before that Li Yiyan's body was as hot as a small stove no matter when.

Li Yiyan frowned, it wasn't cold, it was just ......

He coughed lightly, "Stay away, the torch will burn you." ”

"You just have to stay away." Ning Yunxiao not only didn't retreat, but also approached closely, and they were almost stuck with him.

Li Yiyan's breath paused.

Ning Yunxiao continued, "Sure enough, it's still your usual clothes that are warm, I knew that I would have changed into men's clothes." ”

Referring to men's clothing, she said, "By the way, I set fire to the Lishang Palace just in time to save the birds." ”

Li Yiyan didn't think about it for a while.

Ning Yunxiao prompted, "The one on Qingpingguan Mountain." ”

Li Yiyan remembered, "Why is she in the palace?" ”

Ning Yunxiao quickly explained the ins and outs to him, and then added, "Although it has not been confirmed, she should be the orphan of the Lin family, do you think she has another purpose in entering the palace?" ”

"It's hard to say." Li Yiyan shook his head, but said, "Even if it has another purpose, it is to seek revenge on Li Hanyu." ”

"I guess so." Ning Yunxiao moved his hand, and then said, "But what did that Imperial Doctor Lin hear that made Li Hanyu behead the Lin family as soon as he ascended the throne?" ”

After saying that, he guessed.

Isn't it that the old emperor made an edict to write a prince who clearly wants to inherit the throne, and this prince is not Li Hanyu, causing Imperial Doctor Lin on the side to be killed by Li Hanyu?

Or did Imperial Physician Lin and Li Hanyu conspire to kill the old emperor, and then they were killed?

But when it comes to the edict, the only adult princes are Li Yiyan and Li Hanyu, if it is not Li Hanyu, then wouldn't it be Li Yiyan who should succeed to the throne?

Li Yiyan knew what she was thinking at a glance, and couldn't help laughing, "There is no evidence, what are you guessing." ”

"I'm reasoning in line with reality." Ning Yunxiao was not really, "If you were the emperor, the Tianyuan Kingdom would definitely not start a war with the Flying Dragon Kingdom, making the people miserable, and if you succeeded to the throne, you would not ask for Li Hanyu's life, but he did the opposite, the old emperor is not stupid, no matter how you think about it, you should be allowed to succeed to the throne." ”

She said, "Unless the old emperor hates you, it won't be strange to make Li Hanyu emperor." ”

Maybe it's because when it comes to the old emperor, a touch of pity appeared in Li Yiyan's eyes, "My riding and archery was taught by my father, and I also handled the government for my father. ”

Because of this, not to mention that Li Hanyu did not have an edict to succeed to the throne, even if there was, he was sure that it was fake.

And Li Hanyu was able to succeed to the throne, mainly because of the prime minister, that is, Ning Yunxiao's father, who contributed to it, and it was Li Hanyu who allowed the queen to be the daughter of the Ning family.

Thinking of this, some thoughts flashed through his mind, and he was about to think about it, but the torch in his hand was extinguished without warning, and the surroundings were plunged into darkness.

"It's over, the oil is gone." Ning Yunxiao said. "I wanted to use it to see if the oxygen in the secret passage was not sufficient!"

Li Yiyan was used to her occasionally saying something he didn't understand, and she was also practicing deafness, but she couldn't help it, and even asked what she didn't understand, "What is carbon dioxide, and what is oxygen now?" ”

"Oxygen is the air you breathe, and carbon dioxide is what you spit out." Ning Yunxiao explained roughly, withdrew his hand, and said, "Let's go, anyway, it's me who can't get home, if you fall, you can also carry me out." ”

Saying that, he held Li Yiyan's hand, "Remember, if I faint, don't go in again." ”

"And then go inside?" Li Yiyan held her hand instead.

"Will die."

Li Yiyan's tone showed surprise, "You will die here?" ”

"Also?" Ning Yunxiao pointed out the keywords.

"When I was only ten years old, I was taken captive by the barbarians and taken up the mountain, and when it rained heavily, the people got lost and took me into the cave. The cave is long and narrow, and after a while, there is a small group of wolves outside, and the remaining few small ones take me back in, and find that there is a naturally formed rock road behind it, and the wolves did not come in, but those few fine works fainted one after another, and then died. Li Yiyan said, with a little luck, "I felt that there was something strange in the rock road, so I held my breath and took a breath for dozens of breaths, but Rao was like this, and I lost half my life when I got out of the rock road." ”

Ning Yunxiao joked, "I can't see that you are so witty since childhood." ”

Even in the dark, Li Yiyan could feel her tightness, squeezed her hand to express dissatisfaction, and asked, "What's going on?" How could those fine works die? ”

Ning Yunxiao listened to him and explained the principle that the cellar has not been ventilated for a long time and that carbon dioxide can kill people.

Li Yiyan was very interested, and said, "I still remember that I was frightened a lot, and my mother privately invited the Taoist woman to come, and the Taoist woman heard that the fine work was dead, so she asserted that it was the ghosts in the rock path who killed them. ”

"That might be." Ning Yunxiao replied with a smile, and tripped over something with a bang.

Li Yiyan immediately grabbed her waist, because the darkness was tied, and he didn't know if it was the end.

"I still have a fire fold here, don't walk around, I'll go to the walls on both sides to see if there are any candles." He let go of his hand as he spoke, fumbling for his way to the wall.

Ning Yunxiao gritted his teeth, squatted down and touched the ground.

Her senses had always been accurate, and although she hadn't touched human bones, she had broken a lot......

"Found the oil lamp." Li Yiyan said over there.

Here, Ning Yunxiao's arm paused.

Touched it!

There was a fire about ten meters behind, and then it became bigger, and Li Yiyan took the oil lamp hanging on the wall and walked over.

Ning Yunxiao took a look sideways by the dim candlelight, and sure enough, it was a human head!

"This..."Li Yiyan also saw it, and didn't feel too surprised, since ancient times, there were a few secret passages in the palace without corpses, but after a pause, he continued, "A child's skull? ”

Ning Yunxiao nodded, this skull looked like a child's, and his age was about eight to ten years old.

"The oil lamp comes closer." She said, picking up the skull.

Li Yiyan squatted down and brought the oil lamp closer.

After a moment of silence, the two of them said at the same time, "I've been dead for about four years. ”

Without Ning Yunxiao to say more, Li Yiyan took the oil lamp and went to the tunnel in front of him, and a corpse not far away was lying on his stomach with no head.

"Let's go." Ning Yunxiao stood up as he spoke, and walked to the corpse in a few steps.

"It's a boy." She looked at it and said with a slight hesitation, "It's strange to die here at a young age, and the clothes on this body are ......."

She looked sideways at Li Yiyan, "Do you know each other?" ”

Li Yiyan half-squatted down, reached out and touched the fabric on the corpse, and said, "The fabric from the Zhongzhou Weaving Workshop, my clothes are all made of this fabric, only 100 horses a year, and ordinary officials and eunuchs can't share it." ”

"This is not our Central Plains clothing." He stood up, thinking, his eyes touched a chain of bones around the corpse's neck, and he froze, "This is?" ”

With a slight pull, he pulled the bone chain off the corpse's neck and said in a deep voice, "Sacrifice! ”

"What?" Ning Yunxiao asked puzzled, and suddenly reacted after asking, "The boy I saved also has such a necklace around his neck, he is a sacrifice, so this boy..."

"It's a sacrifice, too." Li Yiyan lowered his eyes, cut these clues in his mind, and came to a conclusion, "There are people in the palace who sacrifice with living people, either my father or Li Hanyu." ”

Ning Yunxiao was also thinking about it, four years ago, the old emperor died and Li Hanyu succeeded to the throne, so who was using living people to sacrifice, it is really uncertain.

Li Hanyu thought for a while and said, "But regardless of whether my father sacrificed with a living person or not, it must be Li Hanyu who sacrifices with a living person now, and his father has already entered the Huangling Tomb." ”

Ning Yunxiao nodded and glanced at the corpse on the ground, "It's so innocent, at such a young age, he was probably confined in a secret room, escaped, and died here." ”

Li Yiyan took photos on both sides again, there were no murals and forks, only a straight tunnel.

"Let's go." He said.

Ning Yunxiao grabbed his right arm, and the two of them walked forward together, and after about half an hour, the stone steps appeared in front of him.

"If there is a secret room, it can only be on it." Ning Yunxiao said, suddenly a little nervous, this is like breaking into a haunted house, when he can't go up, he sees a bunch of skeletons dancing there.

Li Yiyan said, "I don't know if there is a secret room, but the commuter palace is for sure." ”

After finishing speaking, he held Ning Yunxiao's hand, and the two went up the steps together.

Ning Yunxiao counted, ring, ninety-nine steps, the last section is connected to a short section of stone pavement, and the carved stone door comes into view.

Li Yiyan stepped forward and pushed, but the stone door did not move.

"There's a mechanism, look for it." Ning Yunxiao said, and began to touch the place where the stone gate was hollow, and his hands were full of ash.

"Next time, I'm sure I'll bring someone who is proficient in mechanism design." She said, glad that she hadn't encountered any traps along the way, otherwise she would have to shed two taels of blood!

Fortunately, after thinking about it again, this is an escape secret, why put so many traps!

Li Yiyan found the mechanism one step ahead of her, and there was a circular carved bulge above the stone door, he jumped lightly, and pressed the raised mechanism with a force in his hand.

A heavy grinding sound sounded, and the stone door opened.

A rotten breath that had been sealed for many years rushed towards the face, making people smell and churn in their stomachs.

Ning Yunxiao frowned and covered his mouth and nose.

Li Yiyan also covered his face, the smell was really disgusting.

The two of them stepped in together, and it was dark inside, only the palm-sized place in front of them was bright.

Li Yiyan looked at the entrance wall and found an oil lamp to light it.

Ning Yunxiao took the oil lamp and lit it one by one around the wall.

The chamber finally lit up, revealing its interiors.

Ten zhang wide, ten zhang long, the walls are full of murals, in the middle of a stone platform one meter high, two corpses on it, naked, only skeletons remain.

There was a small elm box next to the corpse, Ning Yunxiao got closer and looked at it carefully, but he didn't dare to get started.

Li Yiyan directly brought the box to the ground with his feet, probably more than a year ago, the box shattered when it landed, and a round thing rolled out of it.

Ning Yunxiao squatted down and brought the oil lamp closer.

"It's... Medicine? She said uncertainly.