Everyone's on a time-travel adventure! I'm raising city beasts in a post-apocalyptic world

Outside the palace, the valley had undergone a complete transformation compared to the previous few days. The back mountain of the valley had disappeared, and there were huge mine pits everywhere. More than 100,000 gold-devouring ants carried pieces of ore back and forth like a tide, while tens of thousands of ghost-controlling warriors, under guard, swung their pickaxes and chiseled at the rock walls, making a constant clanging sound.

Professionals were also scattered throughout the mine, searching for and excavating iron ore.

After handing over half of the mined ore, they took the rest with them, mostly heading straight to the workshops in the inner city. They would take out the Ghost Crystal and ask the Forging Maiden to forge black iron weapons for them. Some would also go to the blacksmith shops run by professional blacksmiths to make weapons. Although these blacksmiths were not as skilled as the Forging Maiden, their prices were much cheaper.

Although the insect swarms in the valley have been fierce these days, they have also brought the group a lot of spoils, and they have accumulated quite a few ghost crystals.

Everyone was full of energy.

Lin Feng entered the inner city, which was already bustling with activity. The shops were filled with various goods: weapons, armor, furniture, clothing... there were even shops selling potatoes and vegetables. These people were making a living by using their skills. There were also shops selling the meat and materials of mutated beasts...

"I didn't expect it to be so lively!" Lin Feng couldn't help but exclaim upon seeing this.

Suddenly, Lin Feng felt a tap on the shoulder from behind.

"Lin Feng! Lin Feng! Guess what I've done?" Guo Yi's voice was filled with barely suppressed excitement. "You'll never guess!"

Without saying a word, Guo Yi grabbed him and ran into the workshop: "Come on, come on, I'll take you to see it, you'll be amazed."

Lin Feng was both amused and exasperated: "Old Guo, slow down, my shoes are about to fall off!"

"Don't worry about losing your shoes, I'll buy you a new pair later. Hurry up, these are some revolutionary treasures..."

Guo Yi led Lin Feng straight through the workshop and around to a separate workshop at the back. As soon as the door opened, Lin Feng's eyes were immediately drawn to the car in the center.

It was a visually striking vehicle. It wasn't large, about the size of an ordinary sedan, with a dark gray sheen on its surface, smooth lines, and a futuristic feel. And—it had no wheels.

Guo Yi, beaming with pride, pulled a uniquely shaped key from his pocket and inserted it into the side of the car.

With a soft "hum", the four rune discs on the bottom of the vehicle simultaneously lit up with a blue light, and the lights on the edge of the vehicle lit up one by one.

Then the car body gave a slight jolt and actually floated up steadily, hovering half a meter above the ground, completely still.

It took flight.

Lin Feng stared in disbelief, circling the hovering flying car twice.

"Old Guo, you actually managed to create a flying car? It seems to be powered by magic, no, there's also energy fluctuation from the strange crystal..."

Guo Yi controlled the flying car to land slowly, patted the car body, and explained with great enthusiasm: "Let me tell you, the Qi gathering method you taught is amazing. I used the Ghost Crystal to exchange with others for a lot of Five Elements materials, and then melted the spiritual materials into the black iron ore to make several alloys. I also went to Old Chen to get a handwritten book of talismans and studied it for a long time. Finally, I figured out how to engrave runes into metal and keep the energy flowing."

He pointed to the rune disk: "Look at this, the alloy mixed with the essence of wind has the property of floating. Then, runes are engraved to drive it. Inside the car, an engine is made of an alloy fused with the essence of fire. It can convert energy and is connected to a strange crystal slot. You can put that strange crystal in as an energy source. After the energy of the strange crystal is used up, it can be switched to mana drive."

"It does consume a lot of monster crystals. Under normal driving conditions, one level 4 monster crystal is needed for every thousand kilometers."

When Lin Feng heard this, he thought, "Wow, that's equivalent to 1 level 0 ghost crystals! That's so energy-consuming!" Then, considering that the car could fly, he thought it was only natural.

Lin Feng listened for a while, then circled the vehicle again. The more he looked, the more familiar it seemed. The smelting of spiritual materials, the inscription of runes and arrays, the driving force of magic power… wasn't this the principle behind forging magical artifacts? It was remarkably similar to the artifact forging techniques in his inheritance!

"Old Guo, your brain..." Lin Feng patted him on the shoulder: "You're a real genius..."

Guo Yi was so flattered that his chin almost reached the sky: "Absolutely! I've been thinking these past few days about whether we can convert the flying chariot into a war chariot once we have more spiritual materials, add a weapon system, and mount a set of rune crossbows on the roof. When we're scouting ahead, we can drive out a line of flying chariots and unleash a barrage of arrows, wow... what a show..."

"That would be great! Help me modify one too, preferably with a car refrigerator and a display screen; that would make it so much more stylish!"

The two looked at each other and laughed.

Lin Feng's smile was still on his face when suddenly a hurried thought came from his life contract.

It was Golden Eyes; it was issuing a warning.

Lin Feng's gaze shifted instantly, looking down from ten thousand meters above the ground, where a colossal creature was moving in the jungle below.

It was a city with a steel skeleton, made of thick armor plates, and its size was comparable to that of a large aircraft carrier. Six huge tracks rolled directly over thick trees, leaving behind tracks of crushed flesh.

The steel city was covered with machine gun firing platforms and dozens of cannons. Around the city, thousands of millipedes swarmed from the jungle toward the mobile city, but the mobile city never stopped.

The turret turned, a flash of fire, and dozens of shells fell into the swarm of insects. Hundreds of millipedes were blown to pieces, and limbs mixed with green liquid splattered everywhere. Immediately afterwards, thousands of soldiers on the middle and lower platforms leaned out and opened fire on the ground with their rifles, and the sound of gunfire filled the air.

Rifle bullets and machine gun bullets intertwined to form a dense barrage of fire, wiping out all the centipedes that rushed forward.

Lin Feng's gaze fell on the city, and his heart sank. Judging from the direction the other party was heading, they were heading towards this valley.

Inside the mobile city, a map was projected in the center of a spacious command room. It marked large areas of wilderness and an even larger area above the wilderness, the outer edge of the Sacred Tree Forest, with coordinate points marked on it.

A white adjutant approached, holding a document: "General Lance, General Mac has sent orders for us to proceed to the New New City node in the Sacred Tree Forest as soon as possible. The Gray Fog Tide will appear in seven days, at which time the Gray Fog will engulf the entire wilderness, and even the outer perimeter of the Sacred Tree Forest will not be completely protected. Only by reaching the node as soon as possible can we survive."

Lance didn't turn around; his gaze remained fixed on an area marked with a red circle. "Understood."

He was silent for a moment, then raised his finger and pointed to the valley marked with a red circle on the map: "But before that, we need to get our hands on what's here. The information Jack sold me said there are five rare items here. If we can get them, I don't necessarily have to listen to that old man Mike."