"Listen," he said to Lin Yuxuan, "I'll lead them away, and you take Xiaobei and go first."

"No!" Lin Yuxuan flatly refused, "Let's go together..."

Before she finished speaking, she suddenly coughed violently. Xiao Yi then realized that her face was abnormally flushed. He reached out and touched it, and it was terribly hot.

"You have a fever," Xiao Yi frowned, "is the wound infected?"

Lin Yuxuan shook her head. "It's not the wound... it's those beasts. Their saliva is poisonous."

Xiao Yi recalled the corrosive slime he had seen earlier and immediately understood the seriousness of the situation. He quickly made a decision: "I know there's an underground bunker nearby, an old-fashioned air-raid shelter. Let's go there first."

At this moment, the pillagers' bullets rained down like raindrops. Xiao Yi set up a newly acquired rifle and fired accurately, forcing back the nearest few enemies. He noticed that these pillagers were well-equipped and clearly not ordinary survivors.

"Let's go!" He pulled Lin Yuxuan up with one hand, picked up Lin Xiaobei with the other, and ran towards the direction he remembered.

The sound of gunfire continued behind him, and bullets whistled in his ears. Xiao Yi could feel Lin Yuxuan's body getting heavier and heavier, and her consciousness began to blur. Even more terrible, a familiar roar came from the distance - more mutant creatures were approaching.

At the critical moment when they were about to be surrounded, Xiao Yi saw the entrance to the air-raid shelter that was almost buried by yellow sand. He used up his last bit of strength, dragged the two of them in, and then slammed the heavy iron door shut.

In the darkness, only the rapid breathing of the three people could be heard. But Xiao Yi knew that this was only temporary safety. The threats outside and Lin Yuxuan's injuries reminded him that the real test had just begun.

The air-raid shelter was pitch black, with only the faint light of Xiao Yi's flashlight. The air was filled with the smell of mold and rusted metal. It was obvious that no one had been here for a long time.

"Hold on," Xiao Yi whispered to Lin Yuxuan. Her temperature was frighteningly high and her consciousness was beginning to blur.

He felt around the wall until he found an old-fashioned switch, and to his surprise, when he flipped it, several dim emergency lights came on.

"The backup generator is still running," Xiao Yi muttered to himself, "This place is not simple."

The air-raid shelter was much deeper than expected, with rows of rooms on both sides of the corridor. Xiao Yi chose a room that looked like a medical room and placed Lin Yuxuan on a metal bed.

Lin Xiaobei had woken up, and although he was still very weak, he could at least move on his own. Xiao Yi asked him to help look after his sister while he began to search the room.

In the cabinets, he found some expired medicines and medical equipment. To his surprise, there was also an intact refrigerator with several unopened antibiotics.