Under Xiao Yi's leadership, the atmosphere inside the base became increasingly tense. Everyone understood that they were at a critical juncture of life and death. However, it was this sense of urgency that made them more united and determined.

Encouraged by Xiao Yi, the vaccine development team continued to overcome various difficulties and gradually made progress. They discovered a compound that could inhibit viral replication and began clinical trials. After many trials and modifications, they finally successfully developed a vaccine.

When the news spread throughout the base, everyone cheered, knowing that this meant they finally had hope of defeating the disaster.

However, Xiao Yi did not let down his guard. He knew that the successful development of the vaccine was only the first step, and large-scale production and distribution would be needed next. At the same time, they also needed to strengthen the base's defense measures to prevent the virus from spreading again.

Under Xiao Yi's leadership, the base began to gradually return to normal life. They used their own technology and resources to start producing vaccines and planned to distribute them to people outside. At the same time, they also strengthened the base's defenses to ensure that the virus could not invade again.

In the end, under Xiao Yi's firm leadership and the joint efforts of everyone, the base successfully resisted the invasion of the virus and provided vaccines to people outside. Although this disaster brought them huge challenges and losses, it also made them more united and determined. They knew that as long as they united as one and faced the challenges together, nothing could stop them from moving forward.

In the vast desert, a base stands, a solitary island, towering over the endless sandstorms. This base, called "Iron Wall," is humanity's last line of defense in this desolate land, guarding humanity's last hope.

Every inch of the Iron Wall Fortress exudes the cold, hard aura of steel. Its towering walls act as an impenetrable barrier, sealing off the dangers of the outside world. Inside the base, order reigns supreme, and every corner is permeated by an atmosphere of tension and determination. The soldiers, clad in uniform, their faces etched with determination, silently guard this land at their respective posts.

"No outsiders will be allowed in." This is the highest command of the Iron Wall Fortress and the creed in the hearts of every soldier. However, on this seemingly peaceful land, a silent battle is quietly unfolding.

One evening, the setting sun cast its last rays across the walls of the Iron Wall Fortress, illuminating its outline with even greater fortitude. Just then, a figure quietly emerged from the desert outside the base. He wore ragged clothes, his face etched with fatigue and longing, yet his eyes gleamed with an unyielding glint.

His name is Lin Feng, a traveler from afar. After traversing countless dangers and hardships, he finally arrived in this legendary land. He had heard that the Iron Wall Fortress was humanity's last hope, and he longed to join it and contribute to the future of mankind.

However, when he approached the Iron Wall Fortress, he was blocked by an invisible barrier. He tried various methods but could not break through the barrier. Just when he was about to give up, he saw a patrolling soldier in the distance.

Lin Feng mustered up his courage and walked towards the soldier. He told him his origins and purpose, hoping to get his help. However, the soldier coldly rejected him, telling him that the Iron Wall Fortress would not accept any requests from outsiders.

Lin Feng did not give up and continued to plead with the soldier, hoping to get a chance. However, the soldier became more and more impatient and finally drew his weapon, warning Lin Feng not to get close.

At this moment, a gust of wind blew, blowing up the corner of Lin Feng's clothes. The soldier suddenly noticed a badge on Lin Feng's wrist. The badge was engraved with the logo of the Iron Wall Fortress. The soldier was stunned. He recognized the badge. It was a logo only worn by people inside the Iron Wall Fortress.

The soldier lowered his weapon and looked at Lin Feng again. He saw the firm belief and unyielding spirit in Lin Feng's eyes, which reminded him of his own determination when he joined the Iron Wall Fortress. He hesitated for a moment, then made a decision.

The soldier brought Lin Feng back to the base and brought him before the commander. The commander carefully examined Lin Feng, his eyes filled with vigilance and doubt. However, when he saw the badge on Lin Feng's wrist, his eyes suddenly softened.

The commander asked about Lin Feng's origins and purpose, and Lin Feng answered truthfully. He told the commander that he was a traveler who had been looking for a place where he could contribute to humanity. He had heard that the Iron Wall Fortress was humanity's last hope, so he decided to come here.

The commander was moved by Lin Feng's sincerity and determination, and decided to give Lin Feng a chance. He let Lin Feng receive training and tests inside the base. If Lin Feng could pass the test, he could become a member of the Iron Wall Fortress.

Lin Feng gladly accepted the challenge. In the following days, he went through rigorous training and tests, but with his firm belief and indomitable spirit, he overcame difficulties again and again. In the end, he successfully passed the test and became a member of the Iron Wall Fortress.

From then on, Lin Feng played a vital role in the Iron Wall Fortress. With his wisdom and courage, he helped the base overcome crisis after crisis. He became a role model and leader for the soldiers, and his story inspired more people to fight for the future of humanity.

The Iron Wall fortress grew stronger and more united. The soldiers worked together to protect this land and the future of humanity. They knew that as long as they had firm faith and an unyielding spirit, nothing could stop them from moving forward.

My dear, there is more to this chapter. Please click on the next page to continue reading. It will be even more exciting later!