Energy! Power! When Ian thought that he seemed to have cracked the key to the device, he felt excited.

But on second thought, he suddenly frowned again.

Since the group of people before him also found this instrument, it's unreasonable not to guess the function of this instrument, but from the appearance of this instrument, it seems that there is no trace of starting it before!

In other words, the previous group of people either did not guess the function of the instrument, or they guessed the function, but they could not supply the corresponding energy for the instrument!

Ian estimates that the latter is the most likely, so he frowns and thinks, what is the energy source of this instrument?

Wind power? Steam? It doesn't look like it. This round hollow ball looks like a container. It may be used to hold water, but can it be used as power?

Ian looked at the golden lines on the ground again. He felt that these golden lines covered the whole hall. It was no accident. If they were really regarded as integrated circuits, the real energy used by the instrument might be electricity!

When he thought about it, Ian realized that the people who came here before them, I'm afraid, even if they knew that the instrument used electric energy, they couldn't do anything about it!

But... Ian is different

He took out a fist sized Thunder Stone from his pocket!

Since he controlled the trade of thunderstone in travera, Ian has more resources of thunderstone. Arians also use thunderstone to build a power city, but Ian uses thunderstone as his substitute!

Now he basically carries a Thunder Stone with him, which can be used to use the skill of gun sister card at any time.

And now, the Thunder Stone, which was brought up by the wrong way, can be used!

In the curious eyes of baby-5, Ian holds the thunderbolt and slowly approaches the instrument.

As I said earlier, when a stone like thunderbolt is close to a metal conductor, it will produce a discharge phenomenon. But in fact, this is just the transfer of electric energy in the ore. the discharge phenomenon itself is not dangerous. Otherwise, the thunderbolt used by valudo's thunder roar gun as an attack energy source will be electrified before the attack.

Yi'an can't explain this strange physical phenomenon, but he just needs to know how to use it. When the thunderstone slowly approaches the instrument, a strange scene occurs, and the electric light starts to flash from the thunderstone and run towards the instrument.

At the moment when the electric awn touches the instrument, the indicator light on the base finally starts to flash!

Zizi's voice is incessant. In the palm of Ian's hand with the Thunder Stone, as if there was an electric whip, he kept beating on the instrument! Then it was absorbed by the instrument!

Baby-5 was surprised to see this scene. She didn't expect that the Thunder Stone Yi An was carrying could be used here. After being surprised, she pointed to the hollow ball and said to Yi An, "look

Yi An raised his head, but found that in the hollow sphere, with the power of the thunderbolt constantly released, in the middle of the hollow sphere, there was a bright spot flashing with electric light!

That's the collected electric energy. Ian immediately understood that this hollow ball is probably the same principle as valudo's thunder roar gun, which can collect the electric energy and condense the existence of a plasma ball!

With the appearance of the plasma ball, Ian saw the golden lines on the floor of the whole hall, and even began to emit light.

"Sure enough! This instrument is driven by electricity Ian can't help but feel excited. Now he is 100% sure that the people who boarded the empty island before them probably didn't start the instrument, because they don't have the energy of a thunderstone like Ian to charge the instrument! In other words, the secrets of the city continue to exist and have not been discovered by others.

So now, Ian has a feeling of picking up the leak. The treasure and secret that had not been found before are now found by himself. This feeling is quite comfortable.

"After this instrument is charged, it is estimated that there will be some special secret room, and it is most likely under this hall!" Ian thought.

However, to his surprise, after discharging for a period of time, the Thunder Stone in Ian's hand suddenly turned into fly ash!

At the end of the discharge, the power contained in the thunderbolt was consumed in such a short time!?

Ian looked at the dust in his hand with some consternation, and then looked at the instrument. He found that the plasma ball in the hollow ball was only about the size of a ping-pong ball, and the golden line on the ground was still dim.

"This... This should be the reason for insufficient charging?" Asked baby-5.

"Well!" Ian nodded, and he thought of it, so he said to baby-5, "stay away!"

After baby-5 retreated, Yi An's whole body began to rush out of the electric light. He put his right hand on his forehead, and then suddenly pulled it. A group of electric light was immediately condensed in Yi An's hands!

"Lightning gun!"

Yi'an hurls the lightning in his hand towards the instrument. A dazzling blue light suddenly appears, and the lightning gun instantly hits the instrument.

Zizi's voice rang out, the electric awn thrown by Ian was quickly absorbed by the instrument, and the volume of the plasma ball in the hollow ball suddenly increased.

"How much power is needed?" Ian was a little surprised.

If it were someone else, I'm afraid there's really no way. Let's not mention whether there are thunder moving stones. Even if there are thunder moving stones, the electric energy collected by this instrument is quite large. According to Ian's estimation, it would take tens of thousands of kilograms of thunder moving stones to fill the hollow sphere.

How to bring so many thunder moving stones is still a problem

Fortunately, Yi'an also has the ability of lightning. It's his strong point to convert the power value into electric energy. Since this instrument can absorb all lightning, then Yi'an only needs to use the skill of gun sister card to continuously attack and charge it!

"Lightning gun, second shot!"

"Lightning gun, the third shot!"

Yi'an just kept throwing lightning at the instrument. Once he lost his mental strength, he would rest for a while and wait for his mental strength to recover. As he constantly charged the instrument with a lightning gun, the plasma ball in the hollow ball was also growing at the speed visible to the naked eye.

When Ian threw the 34th lightning gun, the plasma ball condensed from it was almost filled with the whole hollow ball! It is also at this time, the ground again came a huge shock, the ground around the hall, even began to shrink block by block to the center!

Seeing this scene, Ian and baby-5 quickly stood together and tried to get close to the location of the instrument, and then watched the earth shaking changes.

The underground of the hall is full of flat boulders with a thickness of one or two meters. However, these boulders, like some kind of mechanism, keep piling up and sinking, and then constantly shrinking. Finally, they all converge at the place where Yi'an and baby-5 are at their feet and become a huge stone pillar. Later, the stone pillar begins to sink slowly again, carrying Yi'an and baby-5, Like an elevator, it descends to the exposed black hole.

"No!" Ian was a little surprised to think: "this is on an empty island. The foundation won't be too deep. Won't it make us fall?"

With this doubt, they were gradually lowered to the ground by the giant stone elevator, together with the instrument. Fortunately, the situation Yi An was worried about didn't appear. They just dropped about 20 meters or 30 meters. In this way, they reached the bottom.

What appeared in front of them was a basement with an area larger than the hall above. However, when I saw the scene in the basement, Ian and baby-5 were all silenced!

Far down on the island of travera, the members of the Dragon Hunter pirate group who watched the picture through the video phone bug were worried, because just as Ian and them were descending, the picture from the video phone bug disappeared, as if it had been blocked by something, so that they could not see what Ian and them saw at this time.

mural! This basement is full of murals! What's more, the frescoes depict characters that Yi'an had never seen before!

As like as two peas, the dwarves were full of the same moustache, but they were not living creatures. They stood stagnant in the same place and stood still without moving.

"What is this!? Are they residents of this empty island? " Baby-5 looks at the dwarfs in surprise.

"No, these are the real empty islanders!" Yi An points to the patterns on the murals and says that many of the characters depicted in these patterns are characters with a pair of small wings behind them. Therefore, Yi An understands that these are the real empty islanders!

As for the dwarfs like soldiers, Ian finally remembered what they were

Rubbing the murals on the wall, Ian carefully looks at the patterns and guesses the contents described above. In fact, as he thought, these murals depict the empty islanders... No, to be exact, the past of the lunar man coming to the blue planet!

Ian remembered as like as two peas, he knew that he had seen something exactly what he saw after he went to the moon.

In a mural, Ian saw such a scene. In the picture, three winged people, with tears in their eyes, holding a balloon like thing in their hands, were saying goodbye to the people on a ship, and the people on the ship were just the dwarfs in front of them!

With wings, it must be the empty Islanders, and these dwarfs are the robots they made. As for the balloons held by the three empty Islanders, I don't know why, it reminds Ian of the colorful balloons under the clouds of this empty island!

So Ian immediately understood that maybe the so-called Balong ruins terminal was the first station when the lunar man landed on the planet!

I'm afraid the so-called terminal refers to the destination of the Lunan's journey away from home