The "Empty Cavalry Cemetery" is located in the western suburbs of the royal capital, close to the zero base where the Sky King Cavalry is stationed. Originally, it was part of the ruins of the sky that fell at the same time as the floating city of the predecessor of Lingelle Castle, but it was later opened up as a place to place scrapped empty horses. Due to the impact of the original fall, most of the ruins were buried deep underground, and the outcropping part was just a pile of broken rubble. The entrance to the catacomerial area is in the middle of the ruins, and although it is not difficult to find, it is by no means easy to get through.

Because even scrapped empty horses have great value, in order to prevent these abandoned empty horses from becoming bait for air thieves, Wang ** naturally arranged guards outside the empty horse cemetery. A full battalion of soldiers was deployed in the empty cavalry cemetery, and a hundred soldiers were divided into three groups, patrolling the ruins 24 hours a day. Such a warning may not be seamless, but it is enough to deter most unscrupulous tomb robbers.

"Damn, can't you even do it here......" Xiude drew the twelfth red cross on the map with a trembling hand. "The twelve breakthrough points that I carefully selected were all wiped out......"

Having said that, since the sun disappeared from the horizon, the two of them had spent almost an hour walking around the ruins, but they were never allowed to enter. It didn't matter if the Qilin who followed Xiude was gone, but someone in charge of leading the way finally couldn't help but complain. "What the hell! It's just a garbage dump with a bunch of broken copper and iron, is it necessary to arrange a cavalry company to keep watch? Damn, who's in charge of guarding here? I have to transfer him to the Penguin Islands of Siberia!"

“...... Be quiet, idiot, do you want to be revealed?" the Kirin behind him pressed his head down and pointed to the patrol cavalry not far ahead.

"Hmmmm......" Xiude fell silent unwillingly, but stared at the entrance of the cemetery in the distance with resentful eyes.

"I said, you don't have to take this road, right?

"Turn in?" Xiude looked at the cliff that was almost twenty or thirty meters high with questioning eyes, and asked a very simple question. "How do you turn it?"

"That's it......" Kirin said lightly, running forward for a short distance, and then jumped to the top of the ruins with a few vertical jumps, without making a sound.

"What......" Xiu Dekou looked at the unicorn waving to him at the top of the cliff in a daze, and didn't come back to his senses until the unicorn jumped down again.

"How's that? easy, right?" Kirin shrugged at him. "And there's no moon tonight, so it's okay to bring one or two. ”

"You...... Why didn't you say it earlier?" Xiude glared at Qilin with a wordless but resentful gaze, while the latter shrugged his shoulders innocently.

"At first, you confidently said, 'Leave it to me,' so I thought you had an easier way. ”

“...... Give me back the time I spent preparing the map, bastard. ”

Xiude muttered, looking at the map in his hand that had taken a lot of effort to retrieve from the Wang family's library, and Qilin urged him.

"Let's go, we've wasted a lot of time, and if we don't hurry, it'll be too late. ”

........................

The unicorn carried Xiude and jumped through the ruins of the sky ruins, and the ruins of undulating and cliffs became a thoroughfare at the feet of the warriors of the Great Wilderness. Unaware of the patrol cavalry, the two easily avoided all the checkpoints and reached the entrance to the depths of the ruins, thus entering the ruins.

Probably because they were quite confident in the cordon ahead, the two of them hadn't encountered any sentries since they entered the underground part of the ruins. In the silent dark passage, there was only the sound of shoes colliding with the ground, and the spectacle of light emanating from the surrounding stone walls.

"Oh......" Qilin stared at the scene in front of him with wide eyes, revealing a look of surprise that could not be concealed.

It stands to reason that the ruins should have fallen to the ground three hundred years ago, but the smooth surface of the stone wall has no trace of weathering of time. The faint blue light shines through from the inside of the stone wall, forming a beautiful pattern on the stone wall. Up and down, left and right, front and back, the light and text fill the dark space, extending forward to the end of the line of sight, walking in the meantime, it is like being in the corridor of time, it is simply a dream scene that only appears in fantasy.

"Hey, what are these patterns?" the Kirin reached out and stroked the stone wall, he thought they were carved into the surface of the stone wall, but they didn't rise or fall to the touch.

"Don't be surprised, the part of the ground is just something built by later generations, and in fact, it is from here that the real sky relics begin. Xiude arched his hand to the sky, and then explained in a triumphant tone. "As far as I know, these patterns are carved into the molecular structure of the stone wall using holographic technology. Although these were ordinary technologies during the boom of the Sky Civilization, with the current level of human civilization, it is very difficult to understand the principle alone, so there is no way to explain it. ”

"What, you don't know. The unicorn scornfully knocked on the stone wall, and the echo was quite thick. "What about the place of light? is it also some kind of holographic technology?"

"No, the light part, it's the effect of the crystallization of the air stream. Xiude explained.

"Empty stream crystallization?" the Kirin frowned and repeated the awkward word.

"It's troublesome to explain,......" Xiude scratched his head and asked Qilin. "Well, you know the empty stream, right?"

"Yes. Kirin nodded. He knew that the air stream was a circulation of magical energy scattered in the atmosphere, and it was also the source of power for the air riders and airships, but Xiude seemed to tell him something more.

"The air currents are not evenly distributed in the atmosphere, like ocean currents, there are many tributaries, and the density of different airspaces varies greatly, but in general, the higher you go, the more active they are. According to the records left behind by the previous data, the strength of the air currents in the sky realm and the earth realm are not the same concept at all. Xiude stepped on the bare-colored stone wall under his feet. "As you know, these ruins were originally floating in the sky, and their physical structure naturally changed accordingly after tens of millions of years of being soaked in air currents of that intensity. So basically, you can think of these empty crystals as a simplified version of the 'empty flow stones', and the light is the energy that stores the air flow inside them. ”

"I see. Kirin nodded. The empty flow stone is the power stone that drives the empty ride, and Xiude can understand it when he says this.

"Moreover, there is actually a more interesting phenomenon about air flow crystallization. Xiude seemed to be interested, looked left and right, picked up a fallen spar from the ground, and then walked under a pit that sprinkled starlight.

Qilin followed curiously, and saw Xiude laboriously raise the spar in his hand, and then threw it towards the sky. Two or three seconds later, when someone, who had obviously poor eyesight, squinted his eyes and looked for the target that had been thrown in the night sky, the unicorn's gaze was already raised high and then fell rapidly. Hearing a muffled sound of "bang", the thrown spar returned to the exit point with the same violent momentum, but the location shifted three meters to the left - fortunately, otherwise Xiude, who was still looking up, would have ushered in a face blossom.

“...... Are you going to show me something?" asked Kirin, puzzled.

“...... It's strange, it stands to reason that it shouldn't fall, isn't it because the initial impulse is not enough......" Xiude picked up the spar in confusion, thought about it and handed it to the Qilin. "I don't have enough strength, you can try it, just throw it into the sky. ”

"Throw it out hard......" Qilin shook the heavy hedron in his hand. "Hey, no matter how hard I throw it, it's still going to fall in the end, right?"

"You just know by throwing and seeing, with the greatest effort. Xiude didn't explain much, just urged Qilin to try it.

"Okay...... With the mentality of trying it out, the unicorn clenched the spar in his hand, took a deep breath and threw it violently.

Because Xiude said to use the greatest strength, the Qilin did not retain his strength at all, and the scene presented in front of him surprised him.

I saw that the thrown spar burst out of the air with a fierce red light, and its degree not only did not decrease, but soared straight into the sky like a fiery red meteor, and soon disappeared into the night sky where the stars were shining - of course, it never fell again.

“...... What's going on?"

After being stunned for a while, Qilin looked back at Xiude, but the latter was also stunned for some reason.

"I actually threw the degree of the critical point with my bare hands...... You're actually a descendant of giants, aren't you?" Xiude glared at the Qilin suspiciously.

"you! I'm a pure breed!" the Kirin unceremoniously punched someone. "What the hell is going on, and why do the stones fly?"

"Ah, that's actually the principle of the levitation mechanism. Once the spar passes a certain limit, the energy of the air flow will be converted into the buoyancy of the spar itself, carrying the spar back to the sky...... If there were no accidents, the spar would have been carried up to the sky with the circulation of air currents in the atmosphere, and eventually become part of the new floating island, right?What a pity, if only I could see it with my own eyes......" Xiude showed a look of great yearning, but Qilin was more interested in another word.

"What is that?"

"The tipping point?, the so-called 'tipping point' is ......" Xiude, who came back to his senses, explained to Kirin.

When the degree of the spar reaches a certain degree, the resonance between the guò and the air flow in the atmosphere will be converted into a steady buoyancy to carry the spar up. But there is also an upper limit to this degree, and that upper limit is called the "tipping point". Once the hedron has passed the "critical point", the energy of the air flow inside it will no longer become a steady buoyancy output, but will be transformed into very violent and destructive energy. In fact, the three-shuttle shaped hedron and the powerful bow are the main anti-aircraft weapons of the Kingdom 6 Army, but in most cases they are only effective against bulky air pirate ships.

Although the spear stone crossbow has been quite popular among the kings, Xiude has never heard of someone throwing the spar to a critical point by throwing it by hand, so he naturally wonders if the Qilin has the blood of an ancient giant flowing on his body.

"Can this thing deal with an air pirate ship?" Qilin stared at the surrounding stone walls with wide eyes, secretly determined to bring the chisel over next time, but then suddenly turned his head to look behind him.

"What's the matter?" Xiude asked inexplicably.

“...... No, I just heard something behind me. Kirin listened intently. "But now it seems that there is no sound again......"

Just when Xiude looked at Qilin in confusion and Qilin listened, the passage behind the two suddenly sounded the sound of hurried footsteps, accompanied by chaotic sounds.

"Hurry up!

"Trespassing into the military restricted area, and daring to blatantly release signal flares, this time the guy is very bold!"

"I've never seen such arrogant tomb robbers, and after I catch them, I have to teach them how to write 'regret'!"

...... It seemed that the previous actions of the two had been misinterpreted as a challenge to the garrison, and the angry voices and boiling hostility of the soldiers came from the other end of the passage, and Kirin and Xiude couldn't help but look at each other.

Then the next second, the two of them spread their legs and ran towards the depths of the ruins.

........................

ps: Please vote for more! (Tiger landing)

Tips: The new domain name "biquge.info" has been launched by Biquge, and the original domain name is about to be discontinued. Please tell each other, thank you!