Sky Curtain: With a vermilion mirror, Jing travels through the modern world, shaking all dynasties.

"Xiaoyu, what kind of experience are you talking about?"

Zhu Jingjing's pretty face was full of curiosity and excitement, but when her gaze swept over the arm that was tightly holding Jiang Chuan, a little sourness quietly rose in her heart.

"Xiaoyu, Jingjing is asking you a question." Jiang Chuan gently patted her shoulder, his tone tender. "Not only Jingjing, I'm curious too."

Lin Xiaoyu blushed and hurriedly took a half step back from his embrace. "Jiang Chuan, let alone Jingjing, even you haven't seen the scenery of the seabed in person, have you?"

Jiang Chuan paused slightly, then nodded gently; he had indeed never dived.

"Xiaoyu, you need a valid qualification certificate issued by the 'Dragon Kingdom Waterskiing, Diving and Motorboat Sports Federation' to be able to dive." He glanced at Lin Xiaoyu, who was full of enthusiasm, and then frowned. "Besides, Jingjing is still young, and I don't want her to take this kind of risk."

Hearing this, Zhu Jingjing pouted unhappily: "Brother, we've already been to the 'Dragon Palace' on land, Jingjing wants to see the one in the sea!"

Jiang Chuan's face hardened, and his voice turned serious: "No way! Diving is a dangerous sport. Countless professional divers have lost their lives underwater, let alone a clueless little girl like you!"

"Jiang Chuan, when did I say I wanted to go diving?" Seeing his genuine anxiety, Lin Xiaoyu smiled calmly. "Who said that to go to the ocean floor, you have to dive down yourself?"

"Sister Xiaoyu, is there really such a way?"

Zhu Jingjing, who had been drooping her head, suddenly raised it, and her big eyes lit up again.

"Xiaoyu, does this cruise ship have a submarine on board?" Jiang Chuan was somewhat surprised. He knew that only a very small number of luxury cruise ships would carry submarines for sightseeing.

Lin Xiaoyu ignored Jiang Chuan and gently rubbed Zhu Jingjing's head: "Jingjing, of course there is! As long as we get on the submarine, we can dive into the seabed in complete isolation from the seawater, and we won't have to go through the trouble of decompression like scuba diving."

Zhu Jingjing was completely confused. She had never heard of submarines, scuba diving, or decompression before.

She could only look at Jiang Chuan with pleading eyes and whispered, "Brother, what are submarines and scuba diving that Sister Xiaoyu mentioned? Also, what does decompression mean?"

Jiang Chuan looked at Lin Xiaoyu speechlessly, his eyes seeming to say, "You throw out three technical terms, but you expect me to be the free translator."

Looking into Zhu Jingjing's large eyes, which were filled with a thirst for knowledge, he sighed with a wry smile.

"Let's start with submarines. They're ships that can sail underwater. They look like big metal capsules that can completely keep seawater out." He added, worried that it wasn't vivid enough, "It's like sitting in a car and watching the rain outside the window; no matter how heavy the rain is, you won't get wet."

Zhu Jingjing said "Oh," and nodded as if she understood but not quite.

Jiang Chuan continued, "As for scuba diving, it involves carrying an oxygen tank, wearing a breathing mask, and diving directly into the sea. This type of diving requires a special set of equipment, which we call scuba, hence the name scuba diving."

"Oxygen cylinder, breathing mask?" The little princess tilted her head, clearly not understanding again.

Jiang Chuan gave a wry smile and patiently explained, "Jingjing, people can't breathe underwater, right? Oxygen cylinders and breathing masks are devices used for breathing underwater. You can search for pictures of them online."

"Breathing underwater, welcome to Cola Novels, a vast collection of novels awaits your exploration! Isn't that just like being a fish?" Zhu Jingjing's eyes widened in disbelief. "If we had these two devices, wouldn't we be able to swim freely in the sea and go wherever we wanted!"

"Jingjing, diving isn't as easy as you think." Jiang Chuan shook his head slightly and continued, "Next comes the most troublesome issue in the diving community: decompression!"

"The deeper a person is underwater, the greater the water pressure, and consequently, the more nitrogen dissolves into their body." He put away his smile and said seriously, "If you suddenly float to the surface from deep water, the pressure change is too rapid, and that nitrogen will burst out like bubbles from a popped soda bottle, clogging your blood vessels, which is dangerous. Therefore, before returning to the surface, divers must slowly stay in shallow water for a while to allow the nitrogen in their bodies to slowly dissipate; this process is called decompression."

The Great Ming Dynasty, Fengtian Hall.

Jiang Chuan spoke eloquently under the sky, and Zhu Yuanzhang frowned deeply upon hearing it.

"So later generations actually possessed methods for exploring the abyss?" He sighed softly. Having seen many mysterious things from later generations, he was no longer astonished as before. "I never imagined that exploring this deep sea abyss would involve such complex methods. No wonder no one throughout history has been able to accomplish this feat!"

Empress Ma smiled gently and said, "Chongba, we are both fortunate to have benefited from Jing'er's presence this time. We are fortunate to have the opportunity to explore that abyss, which no one has ever seen before, together with Jing'er."

Zhu Yuanzhang nodded slightly and ordered loudly, "Someone, bring some refreshments! The Empress and I wish to enjoy the delicacies while admiring the spectacular scenery."

The Qin Dynasty, Xianyang Palace.

Ying Zheng looked up at the sky and, upon hearing that Jiang Chuan and the others were going to explore the deep sea abyss, became very interested.

"Li Si, what do you think lies beneath the sea?" Ying Zheng gazed at the sky and asked loudly, "Could it be that the legendary dragon lurks beneath the abyss?"

Li Si stepped forward, cupped his hands, and replied, "Your Majesty, in my humble opinion, it is not advisable to have too high expectations! I have heard skilled swimmers say that it is already dark when the water is only a few dozen feet deep, and if it is a hundred feet deep, it will surely be pitch black, and one will be unable to see anything."

Ying Zheng was slightly taken aback and asked doubtfully, "Is this true? If so, why are they going down into that abyss?"

Li Si pondered for a moment, then continued, "Perhaps there is a way to provide illumination. Candles cannot be lit in the sea, or perhaps the 'lamp' of later generations can be used underwater."

Ying Zheng nodded, his eyes filled with envy as he gazed at the sky. "If my Qin Dynasty could be like that of later generations, I would have no regrets even if I could not live forever."

The Great Tang Dynasty, Taiji Palace.

After discussing matters with Zhang Liang, Li Shimin sent him back to his military duties and then ordered someone to summon Xiao Sizi.

"Father!" Little Sizi threw himself into her arms, his little mouth pouting. "Is there anything that Sizi cannot bear to hear..."

Seeing his beloved daughter's aggrieved expression, Li Shimin quickly hugged her tighter and gently comforted her, "Sizi, it's not that I don't want you to hear it, but you are still young, and there are some things that are better left unsaid."

The little ox remained silent, only pouting its lips even higher.

Li Shimin said, "My dear son, when you're a few years older, your father will have nothing to hide from you, okay?"

Upon hearing this, Little Si nodded slightly: "Father's word is law; you cannot deceive me!"

Li Shimin chuckled and said, "When has your father ever lied to you? Jiang Chuan will accompany the Princess of Daming to the deep sea abyss; you, my son, shall witness this wondrous sight with me!"

The little rhinoceros's eyes lit up, and it happily looked up from its father's arms: "Is that really so? Or is it just another 'Dragon Palace' like before, merely a scene on land?"