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

The Great Ming Dynasty, Fengtian Hall.

"What kind of magical object is that square box hanging on the mountainside?" Zhu Yuanzhang looked up at the sky and exclaimed in amazement, "If such a thing existed, wouldn't my conquest of the world have been as easy as turning my hand!"

Empress Ma asked, puzzled, "Chongba, isn't this for climbing mountains? What does it have to do with warfare?"

Zhu Yuanzhang sighed softly, as if reminiscing about the past, "You don't know, back then when we marched, we had to clear roads through mountains and build bridges over rivers. If we had this, crossing mountains and valleys would be as easy as walking on flat ground, why would we need to go through all this trouble!"

Modern-day Shenglian Mountain.

"Brother, are we really going to go inside this box?" Zhu Jingjing gripped Jiang Chuan's arm tightly, staring fearfully at the thick rope above them. "If that rope breaks, it'll become an iron coffin!"

"That's not some kind of rope," Jiang Chuan said, gripping her fingers tightly. "It's called a steel cable, a national treasure that China is incredibly proud of! Adhering to the principle of redundancy and safety, even if a hundred strong men hung on it, they couldn't budge it!"

"Really?" Zhu Jingjing was still a little uneasy, her gaze shifting between the steel cable and her arm. "It's about the same thickness as my arm, and it can support the weight of a hundred people?"

Jiang Chuan affectionately ruffled her hair and chuckled, "Don't worry! I haven't lived enough yet, and I don't want to be buried with you!"

The Great Song Dynasty, Chuigong Hall.

Zhao Kuangyin toyed with the tightly bound bamboo rope in his hand, his brows furrowed slightly, his gaze drifting towards the thin steel cable in the sky.

"Strange," he muttered to himself, "If this bamboo rope were to support a hundred people, it would probably have to be woven into a giant cable tens of feet thick, yet the steel cable is as thin as a child's arm, and it's done like this?"

Zhao Jin bowed and replied, "Later generations revered it as a 'national treasure,' and it is likely that all those ingenious mechanisms and towering pagodas were based on it."

Upon hearing this, Zhao Kuangyin carefully placed the bamboo rope back on the table, saying, "If the Great Song Dynasty possessed such a miraculous object, the river disaster would be eradicated forever. Why then would we need to sweep it up every year, wasting the nation's resources!"

The Great Ming Dynasty, Fengtian Hall.

Xu Da, still in full military attire, knelt on one knee upon entering the hall. "Your Majesty summoned me urgently. What is the purpose of this summons?"

Zhu Yuanzhang sat upright behind his desk and asked, "Do you recall the incident of the pontoon bridge at Pujin in the second year of the Hongwu reign?"

"Your Majesty, I dare not forget," Xu Da solemnly replied. "At that time, I used the iron oxen of the Tang Dynasty as anchors, and with the assistance of the people of Puzhou, it was completed in a single day!"

Zhu Yuanzhang nodded and then asked, "How many years do you think this bridge can last?"

Xu Da pondered for a moment, then said carefully, "The Yellow River's currents are unpredictable, and its ice jams are fierce. In my humble opinion, this bridge may not last more than a hundred years."

Zhu Yuanzhang slowly stood up, pointed to the sky, and said, "If we obtain that steel cable, sustaining it for a thousand years would not be difficult!"

In a modern cable car.

Zhu Jing sat quietly inside the cable car, her hair slightly drooping, her fingertips curling up to create deep folds in her snow-white Hanfu.

"Quiet down, take a deep breath, and relax." Jiang Chuan took one of her soft hands and held it tightly in his palm. "The cable car is not only a tool for climbing mountains, but also a mobile viewing platform. If you miss the beautiful scenery along the way, it would be a real loss."

Feeling the warmth of his palm, Zhu Jingjing's tense shoulders gradually relaxed.

Only then did she muster her courage and shift her gaze from Jiang Chuan to the window.

The towering ancient trees that should have been looked up at now lay prostrate at our feet like bonsai, as if they had truly grown a pair of wings and were riding the wind.

"Brother, look! We're taller than the trees!" The little princess excitedly pressed her face against the glass, completely forgetting her earlier fear.

"This is called a sightseeing cable car. Without lifting a finger, you can reach the summit and survey the world below." Jiang Chuan gently pressed her shoulder to prevent her from getting carried away and jumping up and down. "How about it? Isn't this amazing thing convenient?"

"That's amazing!" Zhu Jingjing clapped her hands, her eyes full of longing. "Brother, what's the highest mountain in the world? Jingjing wants to ride the cable car up to see it too!"

Jiang Chuan chuckled, "Silly girl, the highest peak is Mount Everest in the Himalayas, at 8848.86 meters above sea level. It's a forbidden zone for life, and there's no way to let you ride up there comfortably like this."

Zhu Jingjing tilted her head, her clear eyes filled with confusion: "Why? Is there a mountain god living there who forbids mortals from disturbing us?"

"What nonsense!" Jiang Chuan rolled his eyes at her. This little princess probably had no concept of "over 8,000 meters above sea level." "Mount Everest, known as the roof of the world, is covered in snow all year round. Many challengers have even lost their lives in that snowy landscape. It's impossible to build a cable car there!"

Upon hearing this, Zhu Jingjing blinked her bright eyes and asked, "Brother, even in the scorching summer heat, does the snow on the mountaintop still not melt?"

Jiang Chuan nodded slightly and patiently explained, "That's right! Because the altitude there is extremely high, the air is thinner and colder. The reason is a bit complicated, but I'll explain it to you slowly when we have the chance in the future."

"So when are we going to that peak?" Zhu Jingjing asked expectantly, eager to try. "Jingjing wants to climb up and see just how high it is, and see if she can touch the sky!"

Looking at her adorable, clueless expression, Jiang Chuan sighed helplessly and flicked her forehead lightly: "Not now. Let's wait until Jingjing is a bit older and stronger, then we siblings can go and take on the challenge!"

The Great Ming Dynasty, Fengtian Hall.

"Chongba, do you really think there are mountains in this world that are covered in snow all year round?" Empress Ma frowned slightly, her eyes revealing a hint of doubt.

The Great Ming Dynasty, Fengtian Hall.

"Chongba, do you really think there are mountains in this world that are covered in snow all year round?" Empress Ma frowned slightly, her eyes revealing a hint of doubt.

Zhu Yuanzhang nodded slightly and said slowly, "I have heard people mention that the Kunlun Mountains are majestic and towering, with their peaks and ridges covered in white all year round, just as Jiang Chuan described."

Empress Ma sighed softly, her eyes filled with longing: "How wonderful it would be if one day I could see it with my own eyes."

Upon hearing this, Zhu Yuanzhang reached out and put his arm around her shoulder, gently pulling her into his embrace. "If I were not the emperor, I would truly want to abandon this vast empire and accompany you to appreciate the magnificent scenery of Kunlun."

Modern-day Mount Shenglian.

Zhu Jing stood quietly on the cliff edge, her clothes fluttering in the wind, her gaze fixed on the distant horizon.

"Brother, those skyscrapers look like toys!" The little princess jumped up and down excitedly. This was the first time she had stood so high, as if the city had submitted to her feet.

"Jingjing, be careful, don't fall!" Jiang Chuan steadily put his arm around her waist and pulled her back to his side. "Since you're standing so high, let me test you. Which line of poetry would you use to describe this scene?"

Zhu Jingjing pondered for a moment, then replied loudly, "What's so difficult about that! 'One day I will climb to the summit and survey all the mountains below.' That's it!"

Just as she was feeling smug, she suddenly widened her eyes and pointed at a wisp of cloud in the sky: "Brother! Look at the sky! What kind of bird is that? It even leaves a cloud mark as it flies by! Could it be the legendary Kunpeng?"

Jiang Chuan looked up and chuckled, "Jingjing, that's not some Kunpeng! That's an airplane, a giant steel bird that can carry people!"