Shen Yun looked at the lights in the distance and saw that her condition had improved slightly, and Cao Fang began to talk to her again to help distract her.

"The place where the red light turned out to be a cave laboratory. An American scientist who has made outstanding contributions to the construction of the Light Continent has lived and worked there for more than ten years. After his death, in order to commemorate his great achievements, he was buried directly in a cave. The red light is the permanent light on the top of the monument, powered by a large-capacity lithium battery, and it is no problem to maintain it for several decades, but it is difficult to say if it is more than a hundred years. ”

"More than ten years ago, American scientists who worked and lived in the Daliangshan cave laboratory? Wasn't that the time when my father was stationed here? Did he know the scientist? ”

Cao Fang seemed reluctant to talk about this topic in depth, and bluntly said, "There is still more than half the way to go, let's hurry up and get on the road", and restarted the jeep. However, compared to the previous on the mountain road, he drove more steadily.

The car fell into endless darkness again, Shen Yun held her breath, and only gasped when she couldn't hold it anymore. It was only when she got used to it that she noticed that the jeep was heading down a steep ramp.

So she cautiously looked ahead by the cold light, and when she saw the road ahead, she couldn't help but gasp again, and her back was pressed against the back of the chair so that she didn't scream. This fright has nothing to do with the darkness, not only her, but anyone, I'm afraid they will also fall into extreme panic.

It turned out that this jeep was galloping on the cliff like a peerless martial arts master, not taking a circular route similar to a winding mountain road, but speeding down at an almost vertical angle. Probably only a soldier like Cao Fang, who is not afraid of heaven and earth, can conquer such a steep mountain road.

There were no trees on either side of the road, not even a single weed to be found, only the dark red rocks that were exposed, their faces changing like demons from near to far.

Shen Yun observed tremblingly, describing this mountain road at a right angle is a bit exaggerated, but they are really swooping down a ramp of more than 60 degrees into a bottomless well, so to give the person sitting in the passenger seat the illusion that the jeep is about to roll down the mountain.

She peeked into the dashboard again, and they were traveling at 60 kilometers per hour. She really wanted Cao Fang to drive slowly, but when the words came to her mouth and swallowed back, she didn't dare to disturb him at this time.

Cao Fang just drove for more than three hours as if nothing happened. The two didn't speak again during this time, but the two completely different expressions formed a stark contrast: Cao Fang was leisurely and wandering, and his face was full of calmness walking on the flat ground. Shen Yun was like a frightened kitten, shrunk in the seat and couldn't help shaking. She could only glance at Cao Fang from time to time to seek comfort from his composure.

"We should go down almost 300 kilometers now, right?"

Three hours passed, and Shen Yun finally couldn't help but open his mouth. But as soon as the voice came out, she felt weird, as if the person who spoke was not herself.

Cao Fang pointed to a changing number on the dashboard and said: "At present, it is 321 kilometers underground, if you bear with it a little longer, it will be about half an hour away." ”

"And ...... Half an hour ......" Shen Yun made a "grunt" in his throat and swallowed saliva.

Anyway, having already spoken, Cao Fang also broke the silence and explained apologetically: "How well your heart can withstand pressure in this environment has not been tested, so I don't dare to disturb you casually." The last time I pulled an old professor from Peking University down, he was seriously hypoxic halfway through, so I had to stop and give him first aid. In the event of an accident to the expert, my responsibility is great! ”

He always maintained an unhurried speaking speed, completely like a person who was outside the matter, and Shen Yun sincerely admired him. Thinking about my father in the past, I also ran up and down like this, and my heart was full of emotion.

The remaining half an hour was not as long as Shen Yun thought. Although the two of them still seemed to be precipitated in a thick ink ball, gradually, a faint light began to appear outside the car window. It turns out that from this section of the road, a "street lamp" is erected every 100 meters, the white light pole is more than 20 meters high, and three huge balls that constantly emit soft white light are installed at the top.

"That's a fisheye surveillance system, not an ordinary fisheye video for people on the ground, but a defense device with the highest level of waterproof and anti-submarine back. Even if the bomb shelter is completely flooded with flash floods and mudslides, this monitoring system will not stop working. So at any time, the Underground Light Continent will not lose control of the bomb shelter. ”

After finishing speaking, Cao Fang reached out and clicked the red button on the steering wheel, and the roof of the car suddenly sounded "Di Di Di" three times, accompanied by the sound of metal turning, Shen Yun understood that it was the white pot antenna that was activated.

"Ahead of you to enter the first level of the light world, please prepare to enter the equipment!"

The Rand No. 2 in the car woke up from standby at some point and issued a prompt command. Shen Yun secretly wondered what the connection was between the robot, the parabolic antenna on the roof of the car and the fisheye monitoring system on the side of the road. After thinking about it for a while, she realized that they must belong to the same system, and there must be a master control on the Light Continent that unites them to work synchronously.

At this time, the terrible steep slope, like a hard iron plate, was pushed down and then slowly lifted. The slope was gradually straightening, and Shen Yun's heart, which had been hanging for four hours, fell back little by little, and finally regained the sense of security when he was on the ground.

When he reached the flat road, Cao Fang stopped the car, jumped down first, and then walked very gentlemanly to pull the car door for Shen Yun.

Shen Yun stepped onto the field and looked around blankly, convinced that the "arrived" that Cao Fang was referring not to the final destination. But she didn't ask any more, she just looked at Cao Fang pitifully, meaning: Where have we been?

Cao Fang hurriedly explained: "The jeep is only a means of transportation used by the people of the Light Continent after entering the ground world, and it cannot withstand the pressure of absolute zero. When we get to the transfer station, we have to change trains. ”

It turns out that "arrived" refers to arriving at the transit station!

The "street lamp" overhead swept a dazzling white light, and Shen Yun saw clearly what she thought was "flat land", which was an empty field covering a vast area and similar to a large parking lot on the ground. It is surrounded by six huge pillars like Optimus Prime, and the top of the pillars seems to have a white power grid, but if you look closely, you can understand that the network is actually interspersed with visible electromagnetic waves.

The empty field is circular in shape, and it is difficult to estimate the diameter. They were probably standing outside the center of the circle, and they could see some curved red lines, surrounded by three graduated yellow coils.

"What is this place?" Shen Yun asked.

"This is the optical flow shuttle apron, which is made up of five giant platforms in the same position as us, each with a total capacity of 80,000 square meters, but only one shuttle can take off and land."

"With such a wide apron, only one shuttle can take off and land? Is it because of the huge fuselage? Shen Yun asked curiously.

Cao Fang replied: "On the contrary, in appearance, the size of the optical shuttle resembles a double kayak. In fact, the apron of this scale should be built on the ground, and it is not a problem to lift and lower hundreds of Boeing passenger planes for international navigation at the same time, and the reason why it can only accommodate the take-off and landing of five shuttles is because the shuttle has a teleportation function. ”