"Not enough is inevitable. Shan pointed to the four sides of the iron box, "This is just a model, no one knows how tall the iron box where Gear City is located." Forty years ago, the joint investigation failed to climb to the top of the mountain. The height that can be built this time is more than 700 meters at most, which is far from the zenith. ”

"If you can't get out, what's the use of riding so high?" asked the giant wolf at the Iron Tooth Bar in a muffled voice.

"Our plan is not as simple as that. Shan said solemnly, "Everyone, pay attention. ”

With a flash of light shining under the palm of the mountain. The light ran along the alchemy pattern on the tabletop into the iron box and disappeared. But a few seconds later, the top of the building where Screw Alley was located lit up in vain, and with a "bang", there was an explosion at the junction with the five newly climbed buildings. The five buildings rose a short distance in the explosion, and then the junction between the first and second buildings lit up and then exploded, separating the first and the first four buildings above.

The height of the four buildings rises again, and then there are explosions between the second and third buildings, and between the third and fourth buildings. When the fifth explosion occurred, the last building flew directly to the top of the hall, colliding with the metal ceiling with a "dang" thud.

The fifth model of the building that fell fell to the floor not far from the Triangular Conference Table, but at the moment everyone's eyes were bouncing back and forth between the ceiling and the Gear City on the table.

The effect of this model experiment has been quite obvious, and the zenith is not out of reach.

"What's the success rate of this?" said after a while, casting the first to speak.

"I don't know. Shan's answer was simple, "We can't really conduct a launch test, that would use too many resources." Our family can't afford it. ”

"Doesn't that mean that if the explosion doesn't go well, we can't get to the exit, and we can fall out of the air. The cast voice was emotionless, but it still made Catherine feel the unrest in his heart when he said this.

"I'm sorry, but even if the explosion goes well, you may not be able to find an exit. "No one has ever been above the zenith, and this plan is essentially an experiment." And then we'll have two or three more of these launches. So I hope you can return safely and bring us enough information to facilitate the subsequent launch of Screw Alley. ”

"I have a question, why can't the exit be underground?" Catherine couldn't help but ask, although she knew that there were indeed mysteries above the sky, but the underground of Gear City was also extensible, and it was much easier to explore than to go up.

"You came to Gear City in a state of fuel, so it's understandable that you didn't come from the production base, so you don't know what the situation is underground. Shan patiently explained, "The underground of the entire box is the production base of Gear City, and all semi-finished products and raw materials are produced by the underground production base. Therefore, the recycled waste is eventually dissolved into molten steel and re-filled into the underground molten steel pool. ”

Many of Catherine's doubts were answered by the mountain's words, but it did not explain why she did not explore the underground. Catherine was tempted to ask for more details, but Mountain suddenly announced that this was the end of today's meeting.

Back at his shop, Ice Bear Abyss shook his head and said, "There must be something wrong underground, and that mountain clearly doesn't want you to continue asking." ”

"Hmm. Catherine nodded, "What can I think of, Casting and the wolf wouldn't have thought of, they've been in Gear City much longer than we've been." ”

The two were discussing, and someone came in from outside the shop, but it was a cloud again. However, this time the cloud did not come to ask the two to go to the meeting.

Cloud sat down across from Catherine and the Ice Bear Abyss. "The mountain asked me to come, and he thought you must have some questions, so I told you something about the box and the exit.

"Prior to this project, the Iron Tooth Bar, the Installation Club and Screw Alley had already banded together to find two exits. The first was eighty years ago by the Iron Tooth Bar Project, which searched the entire underground production base. In total, the three of us made four joint sorties over a period of five years, searching all corners of the underground production base, but no exit was found.

"The second time was planned by the Installation Club forty years ago, searching for an exit on the four walls of the box. It took fifteen years to send eight investigation teams to the four walls of the box, but they also failed to find an exit.

"This time, Screw Alley organized the project, and the target was the sky that had not been explored until now. This upcoming mission is only the first test mission of the screw alley-led plan to find an exit, and there will be at least three more attempts in the future. ”

The Ice Bear Abyss shook his head after hearing this. "We've come down from one of the four metal walls, and we've also gone into the underground production base. Whether it's the walls or the underground, it's huge, and your first two plans have found out all about those places?"

The problem of the Ice Bear Abyss was also on Catherine's mind.

"Of course not. Yun replied, "The manpower and material resources of our three parties are still limited, and it is simply not enough to explore such a vast area. It's just that the three of us have an agreement, and each time the leading party proposes its own plan and organizes a reconnaissance operation, once the manpower and material resources of the plan are exhausted, it will be handed over to the next party to implement a new plan. If Screw Alley is unable to find an exit due to the depletion of resources in this project, it will be the turn of the Iron Tooth Bar to continue their underground exploration program. ”

Catherine is sensitive to numbers, saying: "There was a gap of thirty-five years between the end of the first plan and the beginning of the second plan, and twenty-five years between the end of the second plan and the end of this plan." The years are used to accumulate manpower and material resources. ”

"That's right. Yun adds, "As technology evolves, so does the speed at which we can accumulate resources." At present, the technical force of Screw Alley is the most powerful and advanced. ”

After Yun finished speaking, it seemed that he got up again to say goodbye, and Catherine hurriedly asked, "Since we have already investigated twice, can you show us the results and information obtained from those two inspections?"

Yun was silent for a moment and said, "Can you tell you why you want to see it?"

"If we are looking for an exit to the box, we should naturally learn as much as we can about the box. Even if the first two expeditions were unsuccessful, they certainly gathered a lot of information about the box. Let's find out beforehand and it should help us with the rest of our exploration operations. Catherine was born as a scholar, and her words were so convincing that she nodded frequently when she heard the Ice Bear Abyss.

"I can relay your thoughts to the mountain. Yun Lin said before leaving.