Su Yichen looked in the direction Wan Changchun pointed, and for a while there was a confused expression in his eyes. Why were the three of them sucked into that door at the same time, but what happened to him and them was different? Asked Wan Changchun again about the time they woke up, and Su Yichen was sure that they had almost come to their senses in time.

After thinking about it, Su Yichen couldn't help but shake his head again, he really couldn't figure out what was going on, but now in his opinion, it didn't matter, the important thing was that the three of them finally got together again, and they also left the strange building and came outside.

But who would have thought that when Su Yichen asked Wan Changchun if they had found their way back to the 781 base, both Wan Changchun and Hu Zhijun showed extremely strange looks.

"What's wrong?" Su Yichen asked strangely.

"Xiao Su, do you think this is the outside world?" Wan Changchun stretched out his hand and pointed around and asked.

"Of course, it's not ......." Su Yichen didn't finish a sentence and suddenly paused, he suddenly remembered something that he had just ignored, you must know that when they met the strange building in the desert, it was at night, even if the time between was not more than three or four hours, according to this time, it should still be late at night.

And now, the grassland where Su Yichen is located is obviously what it looks like during the day, could it be the reason why he has been in a coma for too long? But this question was also immediately vetoed by him, don't forget that he was still wearing a watch on his wrist, and he deliberately raised his hand to look at the time on the watch, and the pointer told him that it was clearly three o'clock in the morning, although the northwest dawned earlier, but the sky at three o'clock in the morning would not be as bright as it is now.

Suspicious in his heart, Su Yichen looked around at the same time, and at this moment he suddenly discovered another important factor that he had ignored before, because he found that although this place had lakes, waterfalls, forests, grasslands, vines, and flowers...... There was even the same blue sky, but one thing was different, and that was that there didn't seem to be any breath of life other than that.

The common cattle and sheep on the grassland, the birds in the forest, the fish in the lake, and even the small animals on the ground, these are nowhere to be seen, people often use the song of birds and flowers as an adjective when they see the beautiful scenery, but in this place there is no bird language at all, if it is not for Su Yichen, Wan Changchun and Hu Zhijun, this is almost a quiet place, in such a beautiful environment, but people feel a sense of no vitality of the cold.

"You found out?" Seeing Su Yichen's increasingly solemn expression, Wan Changchun sighed lightly.

"How so? Don't...... Are we still in there? ”

Inside, although Su Yichen said vaguely, because he couldn't express it in accurate sentences, both Wan Changchun and Hu Zhijun understood it.

"Lao Hu, you come to sue Sù Xiaosu."

Hu Zhijun nodded, stretched out his finger to the sky and said, "Lao Wan and I have been here for several hours, and when we woke up, we thought we were outside, but we soon found that something was wrong. Not to mention that there are no animals in this ghost place except for the three of us alive, and the sun in this sky has not changed since a few hours ago, the sun has always been in this position and has not moved at all, even this breeze has never changed, I have been a soldier in the northwest for so many years, I am sure I have never seen such a strange scene. ”

"If my guess is correct, this qiē is all man-made." Wan Changchun took over and said.

"Artificial?" Although Su Yichen's heart was shocked, he opened his mouth but didn't know where to ask, he showed a confused expression on his face, and looked around for a long time: "Teacher Wan, if this is man-made, such a big place, and it is underground, it is almost impossible......." ”

"I thought it was impossible at first, but ......." Wan Changchun took Su Yichen in the direction of the nearby forest, and when he approached, he stretched out his hand and pointed to a tree and said, "You come and see this tree." ”

This is an ordinary-looking tree, it is lower than other trees in the forest, but it has a characteristic, that is, it has wide leaves and extremely developed roots, at first Su Yichen only took a cursory look, but soon found that something was strange, he couldn't help but get closer and take a closer look, and even raised his hand to pick a leaf from it, and held it in his hand to confirm it repeatedly.

"This seems to be the leaves of ferns? But ferns aren't that big! Su Yichen looked up in surprise and said. Ferns, which are a very common plant, such as centipede grass and clematis ferns, and some ferns called vegetable ferns, purple ferns, viburnum ferns, apple ferns, hairy ferns, etc., can even be used as food, in times of famine, it is the main source of wild vegetables for people, and even now people often dig to make cold vegetables or make bun fillings to eat.

There are also many classifications of ferns, and there are nearly 100 kinds of forests and forests in various subjects, but their common characteristics are herbaceous species that grow in the mountains and wilderness, and they are generally relatively low. But the tree in front of Su Yichen is completely different from ordinary ferns, although it is slightly lower than other trees, but it is also nearly 10 meters high, and the leaves above are particularly wide, the largest is almost half a person's length, which completely subverts the understanding of ordinary ferns, if it is not for the fact that Su Yichen can definitely match the characteristics of ferns from the leaves he plucked with his own hands, he even wonders if he is dazzled.

"No, you read that right, it's a fern, but it's not a fern in general." Wan Changchun said to the stunned Su Yichen.

"No way! How could there be such a tall fern in this world? Maybe it's just a coincidence ...... of the likeness. Su Yichen shook his head without thinking about it, and just as he was about to continue, he was suddenly stunned, and something that he ignored flashed in his mind, could it really be ......?

Seeing that Su Yichen had some reactions, Wan Changchun pointed to the tree and said: "The origin of the species, during the Devonian period, the earth where we are located had countless tall ferns, these plants dominated almost all the lands of the earth, and after hundreds of millions of years, until the late Cretaceous period, which is commonly known as the third generation period, it still exists." According to current scientific research, the ferns at that time were not as low as they are now, but grew unusually tall, often growing to 20 to 30 meters or even higher, if compared to this height, this fern tree is relatively short. ”

The mysterious buildings, the strange doors, star maps, passages, and this strange and quiet space, including the fern tree, which should have been extinct long ago and could not have survived, all of which made Su Yichen's brain chaotic, and all the qiē almost violated science, although the facts in front of him told him that this qiē was all true, but Su Yichen couldn't make himself accept this qiē for a while.

Perhaps understanding Su Yichen's complicated mood now, Wan Changchun couldn't help but gently pat him on the shoulder. To tell the truth, a few hours ago, when Wan Changchun found out about this, the shock in his heart was no less than that of Su Yichen, and he even vaguely felt that this place was hiding a huge secret, and if this secret could be revealed, it would cause a sensation throughout the world and even rewrite the history of mankind.

Among the three, only Hu Zhijun is the most calm at this moment. He is different from Su Yichen and Wan Changchun, he only has a high school education, he doesn't understand the scientific issues discussed between Su Yichen and Wan Changchun, as for the Devonian, Cretaceous and the third generation, it sounds to him more like listening to the book of heaven.

In Hu Zhijun's heart, he felt that although the place they were in was strange, at least there was no danger for the time being. Rather than discussing these nonsensical things here, it is better to find your way out sooner. In his opinion, nothing is more important than the mission, and his task is to escort the two experts to the 781 base, and the other qiē can be put aside for the time being.

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