Unknown objects roar in the sky, and rocky slopes seem familiar.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~

“……”

In the forest of striated leaf trees, whether it was Xinglan or the tidal knot that jumped directly on the canopy, they all rarely maintained the same movement: looking up at the sky, opening their mouths slightly in shock, and not saying a word......

After a long time, Xijie seemed to swallow his saliva with great difficulty, and said slowly, "Sister...... Sister, is that what you made......"

"I wish it were...... This is too ......" Xinglan exhaled softly, feeling a little headache, "Even if you just sighed that the challenging world is fun, don't let this kind of challenging thing appear so soon!" ”

Now, let's go back a minute......

After releasing the two electrosprints, Xinglan and Shiojie walked together in the woods of the striped leaf trees towards the nearest coastline to the south, and Xinglan, who couldn't study the mystery of the leaves of the striped leaf trees for a while, put aside the matter for a while, and began to enjoy the beautiful natural scenery around them...... Until they suddenly heard a loud noise.

A loud roar that seemed to tremble as if the whole world was shaking did not come from somewhere in the woods, but directly from a distant place overhead. Strictly speaking, this sound is not unfamiliar, in fact, if this situation were placed on Earth, no one would be surprised or amazed at all, most people would just glance up at the sky in surprise: "Look, there are planes in the sky!" ”

It's not uncommon for planes to pass by in the sky, however...... Don't forget that this is not the Earth, but the Arashi of the New Era!

Xijie may have thought for a moment that this was a shuttle from Qingqi that happened to pass by in the sky to brush up on its presence, but Xinglan, who clearly understood the location of all the shuttles, instantly understood the feeling in her heart as if there were 10,000 grass and mud horses galloping by, and looked up at the place where the sound came from with a shocked expression......

…… The blue sky is full of white clouds, and there is nothing else.

Invisible objects? No, it's more likely that an object is not visible from a normal sound source than it could be some invisible object passing through the sky......

Xinglan and Shioyu quickly turned their heads to the side in complete unison, and then saw a small black dot moving rapidly at a speed visible to the naked eye at the end of the sky......

This unidentified object actually flew at supersonic speed!

……

"Isn't this a Death Shuttle?" Xijie couldn't help but let out an exclamation, and urged Xinglan in surprise, "Sister! Would you like to catch up? ”

“…… Forget it, since it has appeared, then sooner or later we will meet again and understand its truth. Xinglan hesitated for a moment and then decided, "There are some things that need to be kept and slowly revealed." ”

"Forget it, forget it, it's up to you anyway." Xijie watched the unknown object disappear at the end of the field of vision, and muttered, "Then let's continue to move towards the Southern Yuan Continent, I hope it won't be a big deal. It's a hassle to ......."

Although "En......" said it easily, Xing Lan didn't let it go so easily in her heart, and the signal sub-network quickly calculated, trying to analyze the situation just now.

It couldn't be a large animal like a thousand wings, and even if countless wings flapped together to make a roar, it would not be possible to produce a loud sound of this tone, this kind of sound...... It's the kind of loud roar that a jet engine can produce.

Similar to the white puffin? Nor is it possible, the white puffin could not be seen from such a distance, nor could it reach such a high speed of Mach 1. It was a large flying object, and as you could tell from its silhouette, it had a pair of broad wings on its sides...... It's not the flapping wings of birds, but straight fixed wings!

Flight altitude...... Quite high, at least higher than Megacoccus. At the same time, it can be seen that since this object has such a high altitude and such a fast flight speed, it must be making an ultra-long voyage, which would require extremely high energy consumption if its mass is also taken into account! Even if the digestive organs of living beings apply the chemical energy in food to the limit, it is unlikely that such extravagant consumption will be carried out!

Could that be an alien civilization invading the spacecraft here? It is unlikely, since the last Yanghai Space Gate incident, Xinglan has been closely monitoring the objects in the entire star system, unless the other party is willing to risk the overlapping spatial positions of the particles causing a forced nuclear reaction, and directly teleport the aircraft to the surface of Lanxing...... The probability of this risk occurring is almost 100%, otherwise even if you turn on optical camouflage, don't want to get involved!

So...... Is it the wind that is gone? It shouldn't be possible, Xinglan just told him a lot of experience instead of various rigorous scientific formulas, even if he was smart enough to explore these mysteries, but he didn't need to build this kind of flying machine at all, but could completely control a large number of flying creatures for transportation. At the same time, if he really develops to the stage of supersonic vehicles, then it must also be supported by a large logistics base, but Xinglan's outer space observation did not find anything on the surface of Lanxing that could be a large civilization building.

"Sister-sama can't figure out what this might be?" Xijie looked at Xinglan, who was helpless after deep thought.

“…… Well, I don't know at all. In the end, Xinglan could only shake her head in confusion, temporarily leaving this mysterious UFO behind, and followed Xijie forward through this wonderful leaf forest.

……

Eventually, as the distance from the grassland grew, the striated trees began to become more and more sparse again, and the trees quickly receded at a visible rate in a short distance, revealing large open spaces.

Xijie jumped down from the branch of the leaf tree, as if he was sniffing something in the air, and looked up at Xinglan very seriously: "You can already smell a faint salty smell in the air, it seems that the coastline is ahead." ”

"The signals all over outer space are navigating, and the direction will naturally not be wrong, and we are about to reach the end of the Northern Yuan Continent." Xinglan's auditory system keenly captured the extremely faint sound of waves coming from afar, even if she didn't use signal sensors to scan and explore the way, she could fully imagine how those snow-white waves in the distance were violently lapping the coastline, "Even if it is much warmer than the polar continent, but the Northern Yuan continent has a relatively cold climate after all, and theoretically speaking, the most abundant biological species have to be the Nanyuan continent and the macro continent close to the equatorial zone, and the forest coverage rate of those two continents is also the highest in the world from satellite images." ”

Xijie blinked: "So the focus of this exploration is actually the Nanyuan Continent and the Macro Continent?" ”

"Originally, my plan was to go straight there...... If it weren't for some little guy who offered to go to every continent. Xinglan looked at Xijie and subconsciously shrunk her neck, and replied with some amusement, "But thanks to this, otherwise I really didn't expect that there would be a creature like a wave blade insect that can directly cut through the aerospace alloy." If you only rely on those simple and intelligent automatic robots to deal with the creatures here, I am afraid that there will be heavy casualties and little gain. ”

"Is that exaggerated......

"Of course, I have a hunch that the creatures of the Sixth Age have completely undergone some essential changes......" Xinglan narrowed her eyes slightly, "whether it's a waveblade worm or an electric gallop beast...... Even the arthroplastic monkey is not impossible to completely dismember the autorobot, unlike the body size of the automaton crushed by the thousand wings, these creatures have mastered abilities that should not be mastered by ordinary creatures, and it is clear that this situation is not unique, but a large part of the creatures are beginning to fall out of the category of carbon-based organisms in some sense......"

"But why?" Xijie asked suspiciously, "Obviously everything was normal in the previous evolutionary process, why did it suddenly change at the beginning of the Sixth Age?" ”

“…… I don't know, the planet's magnetic field with an abnormal increase in strength, the isotope storage ball leaked from the nuclear continent, the impact of the Yanghai Space Gate on the space environment, the source spore silk we brought back, and even the hands and feet that those alien invaders once did, all ......of these things are possible," Xing Lan paused suddenly, and then said slowly in a solemn tone, "Maybe it's still possible...... That thing ......"

The strange hypercube that turned into a rain of light and completely disappeared after destroying the high-energy radiation on a large scale, a completely incomprehensible ultimate technological creation, Xinglan believes that even the Aerial Disk is absolutely impossible to be higher than that hypercube in terms of dimensional applications, at least it is impossible for the Aerial Disk to make itself as if it is completely detached from the world and cannot be attacked at all.

"That thing? What is it? While chatting with Xinglan, Xijie waved her claws dissatisfiedly, driving away a few small insects in the air that kept flying around her.

“…… Well, nothing. Xinglan prevaricated vaguely and looked up ahead, "Look, you can already see the waves." ”

Shioyu didn't think much of it, and after cheering, he rushed directly past the location of the last leaf tree, and closer to the shore, the dirt layer finally came to an end. At the last moment, the earth layer turned into a slope full of huge irregular stones, and once you passed through this rocky slope, a large golden sand beach in front of you suddenly came into view, as if the sand grains made entirely of golden sand were flowing warmly and sparkling in the sunlight.

Xijie jumped lightly on the ground, crossed a graceful parabola in the air and landed on the top of the boulder, and after a few jumps, he directly reached the beach, and although Xinglan was not very big, he could not mess around like Mystery Xin, so he could only carefully walk down the slope several meters high along the gap between the rocks.

It took Xinglan several minutes to get through this not-so-long slope because of her repeated circumference over the boulders, and when she finally squeezed out of the gap between the last two rocks, she heard the cries of Shioyu, who had been playing on the beach for a while, "Sister, what did I find?" These guys look so weird, and they're stupid to act! ”

Turning her head to look, Xinglan was stunned for a moment, watching Xijie curiously fiddling with a yellow-brown soft-bodied creature on the ground, the primitive nest on top of it and the wriggling and crawling movements were so familiar, and the memories of many years ago resurfaced at this moment......

"This, this is ...... Sand cotton? Sand cotton! ”