"I stated, 'You have allowed yourselves to be blinded by high technology, thinking laser guns and flying saucers can solve everything. Comrade, remember this: the people are the greatest weapon in war. Of course, a few surplus laser guns for these primitive brothers wouldn't hurt either.'"

The Dragon Girl replied, "Our weapon manufacturing capabilities are extremely limited, and producing laser weaponry requires vast resources, so we cannot offer them laser gun support for the time being."

"No matter, take your time. But I wonder what energy source you are currently using for your primary power systems?"

The Dragon Girl explained, "Helium-3 nuclear reactors. We utilize the fusion of Deuterium and Helium-3 for the energy source of our power stations. This fusion produces no neutrons, making it safe, non-polluting, and easily controlled nuclear fusion. It is suitable not only for ground-based nuclear power stations but especially for interstellar navigation. Our ten starships all use this power system."

"I suspect this nuclear technology was also brought back by your ancestors, wasn't it?"

The Dragon Girl blushed slightly. "Yes, Dragon Envoy. In the five hundred years after returning to Earth, our technology made no progress. However, with the Dragon Envoy leading us now, everything will surely improve, right?"

I hadn't registered the Dragon Girl's subsequent words; instead, I was completely captivated by the recent terminology: Helium-3... nuclear reactor... Oh no! I had forgotten a major event: the Prehistoric Nuclear War!

More critically, Earth only has a few hundred kilograms of Helium-3, enough to power a 500-megawatt plant for just a few months. They are using it as common energy? Where did this massive amount of Helium-3 come from? The Moon! The place richest in Helium-3 content is the Moon!

Why do I say this? Modern scientists all believe that during the Sun's internal nuclear fusion process, enormous quantities of Helium-3 are generated. This Helium-3 is then blown by the solar wind onto surrounding planets, becoming the primary source of Helium-3 for solar system planets. Because Earth is covered by a thick atmosphere, the solar wind cannot directly reach the surface, hence the extremely low natural reserves of Helium-3 on Earth. However, the situation is different on the Moon, which has virtually no atmosphere, allowing the solar wind to strike its surface directly, resulting in a massive "deposition" of Helium-3 there. Scientists estimate, by analyzing lunar soil samples brought back from the Moon, that over hundreds of millions of years, the solar wind has delivered approximately 500 million tons of Helium-3 to the Moon. If used as an alternative energy source for humanity, this supply would last for millennia.

Theoretically, that is the case, but is that truly the reality now? There is no Moon in the sky right now. Even if the Moon reappears in the future, would the Helium-3 from it still originate from our Sun? It is impossible for such a vast resource of Helium-3 to accumulate in just six thousand years.

"Dragon Envoy, Dragon Envoy," the Dragon Girl called out repeatedly when she saw me spacing out.

I asked urgently, "Dragon Girl, do you possess nuclear weapons? Atomic bombs, hydrogen bombs, do you have those?"

The Dragon Girl replied, "What the Dragon Envoy speaks of must be the weapons carried on the starships. We have never used them. According to records, the consequences of using such weapons are terrifying, so the nuclear arms on all ten ships are password-locked. Using them easily is impossible."

"Who holds the passwords? Is it your brother?"

The Dragon Girl clarified, "No. My brother only controls one vessel; the others are controlled by their respective ship-masters, passed down through generations. Some may have been forgotten."

I wiped the cold sweat from my brow. This situation was far from secure—it was like having a knife held to my throat. I must pay close attention to this in the future; I might accidentally get blown up by a nuclear bomb someday.

Headache, trouble. This prehistoric era is genuinely tiresome. Before leaving, I made sure the Dragon Girl brought Xiao Dong back. This clone beauty looked ecstatic; I suspect serving the high officials in the palace was less comfortable than carrying out missions outside, where there was also the possibility of sexual pleasure. But regardless of the recreation, I still had to deliver my instructions.

"Comrade Xiao Dong, the people have entrusted this heavy burden to you; you absolutely cannot let everyone down. Striking the enemy is important, but protecting our vital forces is even more crucial, as self-preservation is the most effective means of striking the enemy. You must never carelessly let everyone charge the Clone Rebels wielding only stones! You are to conduct guerrilla warfare behind enemy lines—do you understand? You must strike the enemy while preserving your strength; you are to engage in guerrilla tactics and skirmishes, not full-scale, head-on battles! If you don't understand, fine, I will explain it to you piece by piece..."

By the time I finished, even the Dragon Girl, who was translating, was utterly confused. I said, "Forget it! Let's depart! Xiao Dong can slowly grasp the concepts later."

Humans are such strange creatures. Since I had ridden a Centaur yesterday, I no longer objected to Elena mounting one, and I too took a Centaur. Honestly, riding was quite comfortable. Although the marching speed wasn't as fast as my walking, with so many people, I couldn't just ride off ahead with Elena and the Princess. I decided to stroll along with them.

A few days later, we arrived at a great prehistoric metropolis—a gathering place for one of the prehistoric super-civilized human groups. The city housed nearly six thousand residents. Although it lacked skyscrapers, electric lights, telephones, cars, or trains, its level of civilization, compared to the outside world, was like a celestial palace.

Asking around, we learned this was not Yanshan, but a place called (tuo). Since we were unsure if the rebels were present, everyone remained very low-key, quickly finding an 'inn' suitable for rest, planning to stay one night to replenish food and water before continuing the journey the next day.

"You actually don't issue currency and rely on barter!" When I discovered that this Tai Hao Kingdom lacked a monetary system, I nearly spat the water I was drinking back out.

The Dragon Girl explained, "My brother is the hereditary king, and like many officials, he possesses his own property. We produce and build freely in our respective territories. What use is currency? If a specific resource is needed, it is simply exchanged for a certain quantity of other resources."

Elena agreed, "That method sounds quite good. It absolutely prevents inflation and currency devaluation."

I countered, "Then how will we manage our lodging tonight and tomorrow's rations? We have nothing."

The Dragon Girl said, "Xiao Ke has already settled things with the innkeeper. We traded two laser guns. With the recent unrest, laser guns are quite valuable and can be exchanged for many things."

"Good thing we captured a few guns, or we’d really be starving. By the way, will these men and horses arouse suspicion?"

The Dragon Girl chuckled. "Rest assured, Dragon Envoy. The rebels under Kang Hui use Beastmen even more frequently. This city is famous for producing gold and precious jade, so it must be a key destination for them. Seeing that no one paid us any mind as we entered, they must be quite accustomed to these monsters."

Suddenly, Elena grabbed my arm. "Look outside, a Giant!"