"Be careful of those rocks! Don't hit them!"

The number of collectors who change their shape are galloping on the water like a speedboat, which allows them to quickly shorten the distance between themselves and the destination, but such aggressive behavior is also accompanied by danger. If such a high speed hits a rock in the water , There is bound to be serious damage.

　　 For this reason, the collectors must be vigilant.

　　 is in the distance, looking like a small metal structure like gravel, zooming in at a speed visible to the naked eye.

　　 "We are almost there!"

　　As the distance drew closer, all the collectors became excited.

　　 It didn't take long. The collector ended this dangerous water gallop, re-changed the biological body structure, and returned to the original flat biological form resembling a ‘canvas’.

　　 The collectors who stopped and looked at the huge metal structure in front of them.

It has the appearance of a quadrangular pedestal, and the volume is equivalent to a stadium. Some Mayan pyramids are made of metal. The surface is very smooth, but it is inlaid with a lot of coarse sand. It seems to have withstood the baptism of many Mach tsunami , The rapid water flow always keeps the surface of the metal body smooth, but the huge force has forced the coarse sand mixed in the waves into the surface of the metal body, which is what it is now.

　　 "What metal is this?"

　　 Hearing this, one of the several collectors approached the surface of the metal structure tentatively with tentacles, making a crisp sound of gold and iron clashing.

　　 Charge the electric energy to start the single-molecule blade, flicking hard.

　　锵!

　　 With a burst of sparks flashing, the single-molecule blade scratched a shallow scratch on the surface of the metal structure. Then, the collector put the tentacles that disconnected the electrical energy into his mouth.

　　 "The main body is carbon-iron alloy, but it is mixed with other impurities. It should be the direct smelting and casting of the minerals, and the impurities in the minerals have not been removed."

　　 "This is a man-made object, but what is its function? A simple sending device? Or, is this a spaceship?"

　　 "It doesn't look like it. There are too many metal impurities in this quadrangular pedestal. Obviously it was cast out of shoddy construction. The possibility of a spaceship can be eliminated first.

　　 "Considering the complex and dangerous environment on the planet's surface, combined with the rough processing of metal, this thing should be something similar to a refuge."

　　 "Look for it first. If it is a refuge, there must be a gate connecting the inside. If this thing is a refuge, then the probability of discovering other intelligent species besides the Serines is almost inevitable."

They surround the metal body of the quadrangular prism. After searching for a circle, they found something suspected of a gate on the top of the quadrangular prism. The reason they are said to be suspicious is because the collectors are not very sure. The baptism of the Mach tsunami, even if it is really a gate connecting the interior, will inevitably be distorted by the manic currents like this.

　　 "Break open directly."

The collectors showed their monomolecular blades. After charging and cutting, the gate was forcibly broken by the monomolecular blades. For the monomolecular blades, the hardness of these metals is far from comparable to it. Opening the metal gate on the top of the quadrangular table is as easy as breaking a piece of pudding.

Several collectors entered the inside of the quadrangular metal structure from the broken hole in turn. Then, they repaired the hole in the gate from the inside, so that when the next wave of tsunami hits, the manic water flows from this hole. Pour in.

　　 "It's so dark..."

　　 There is no light source. In order to solve the vision problem, several collectors have replaced the infrared vision ability, relying on the subtle heat radiation emitted by the substance to observe the environment.

The inside of the gate is a shaft-like tunnel, and a metal vertical ladder is used on the wall of the shaft to keep it up and down.

　　 However, the collectors did not step on this vertical ladder. They gradually descended by relying on the tentacles of their bodies to support the shaft wall.

　　 After descending a distance of about two kilometers, the collectors reached the bottom of the shaft tunnel.

　　 "Be vigilant, don't let the intelligent species in this metal building find us, otherwise you can specify what will happen, and don't use visible light if it is not necessary."

"To understanding."

　　 The collectors moved around. They were fast and flexible, but at the same time, they were extremely quiet. Even if someone was close to the scale of half a meter, they could not hear their footsteps.

　　 This underground space is not too big, it's just an area of ​​10,000 square meters, two tables, one is a dining table, one is a desk, and there is a simple water filter.

　　 "Look at what I found, a structural blueprint."

　　The collector obtained a drawing that had been drawn from the desk.

　　 "The four-sided pedestal structure, a bit familiar..."

　　 "What are you familiar with? Didn't we get in touch with it not long ago?"

　　 "...Uh, it turns out that this is the structural drawing here."

　　 After being reminded by the same clan, the collector then reacted with hindsight.

　　 "I also have a new discovery here. You see, it was a bowl that was eaten. Judging from the traces left on the bowl, this bowl was still in use a few months ago."

　　 "There is only one bowl, which means that the number is one."

　　 After exploring this entire space, the collectors found four doors, not knowing where they were connected.

　　 "There are four doors here, which one shall we go to first?"

　　The collectors couldn't make up their minds, and some were worried that their random choices would alarm the intelligent creature here.

　　 "Don't worry about making a choice, I have a blueprint for the structure here... Okay, the language is not clear, UU reading www.uukanshu.com first choose a random fan to open it."

　　 Although the drawings are in hand, the notes on the above are not understood at all. It is difficult to distinguish what is behind the four channels simply by relying on the geometric structure on the drawings.

　　 So in the end, the collectors chose a door randomly and opened it carefully.

　　 "So dazzling."

　　 As soon as the door was opened, a dazzling light shone toward the collectors. After adjusting to the light, the collectors saw an extremely bright plasma.

　　This plasma exists in a ring-shaped structure. Most of the structure is transparent. It is the main body of the transparent corridor constructed by the hafnium compound. The corridor is connected in series with a ring of metal hydrogen to confine the internal plasma.

　　 "This is... a magnetic confinement nuclear fusion furnace."

　　 Collectors can recognize the true face of this device, they have seen similar things before.

　　 "It seems that this area is responsible for energy supply. Let's go and see elsewhere."

　　 After a brief search, they found nothing more. Apart from the fusion reactor, there was only one connection line in the room, and they chose to leave.

　　 opened another door, and there was also light shining on the collectors, but unlike the fusion reactor, the light in this room was not dazzling, but very soft.

　　 The space area of ​​the room is very large. After a simple distance measurement analysis by the collector, it is about 25 square kilometers.

　　 A large number of vegetation is arrayed in this huge space area. Above the vegetation is a lighting device. The soft light in the room is released by this large amount of lighting device.