Chapter 254: Zombies Burrowing Underground

That's what she said, but looking at the densely packed corpses below, it would be a big project to really find them.

Yun Shuhuai guessed that the location where the corpse king was hiding would not be too far away from the original corpse king, so its location must be within this range.

The horizontal range of the corpse tide is very large, and she can't run to every inch. She needs to find a general location first, and then focus on the search.

Observe more carefully, and more carefully, there must be some clues.

Yun Shuhuai was paying attention to the surroundings while fighting, but suddenly, she felt the wall under her feet vibrate.

Not only her, but others also noticed it.

"Boom!" There was another shake, and this time everyone clearly felt the impact from underground.

"What...what's going on?!"

"Underground, it seems like something is hitting the foundation!" A fourth-level earth-type esper shouted.

"Damn it, seeing that they can't get through from above, they started digging holes? So cunning!"

Everyone's mood sank. In order to prevent the wall from being destroyed, the gold-type esper basically stopped attacking and focused on repairing the wall. In order to prevent the sudden attack and jump into the base by the high-jumping zombies, some people were assigned to focus on the air. Now they have to prevent the zombies from drilling in from underground.

However, underground defense is more important than air defense. Currently, only a small number of zombies can come up from the air. If a hole is dug underground, then the zombie army can easily drill in.

The loudspeaker on the wall sounded: "All earth-type espers, please go to the base as soon as possible. We need you to defend the foundation."

Although the battle on the wall was fierce, the earth-type espers had to go down. Without two types of espers, the pressure on the fighters on the wall was even greater.

The earth-type espers came to the base of the wall, put their hands on the ground, and began to reinforce the foundation, squeezing the zombies that had drilled into the ground to death.

The foundation of the wall was very deep, a full 80 meters underground. From the end of the world to now, the wall has been constantly reinforced up and down.

Since Yun Shuhuai caught a mutated giant mole that was dug in from outside the base, the base has deepened the foundation a lot.

If they can survive this wave of corpses, the base will probably reinforce the wall again, because at the current height, high-jumping zombies can easily jump in, and burrowing zombies may also be able to drill in.

Sure enough, a fifth-level earth-type zombie drilled into the ground, bypassed the base, and entered the base without anyone noticing.

It drilled out in a small forest, and the people at the wall were fighting fiercely, and no one noticed it at all.

The zombie came out of the ground, turned around and looked around. The air smelled human, and it opened its mouth wide and headed towards the residential area where the smell was the strongest.

But it didn't expect that it had broken a few inconspicuous vines when it came out, and the broken dodder stuck to its feet.

Not far away, Ye Zixu, who had just tied a few zombies into dumplings and hung them on a tree with his sister, immediately became alert.

"Xiao Wan, it seems that a zombie has come in from underground."

Ye Zixu said, "Let's go and take a look. It was my brother who was attacking just now. I haven't used the new weapon that Sister Yun gave me yet."

"Okay, then Xiao Wan will take the kill this time."

Ye Zixu and Ye Ziwan each rode a small scooter towards the zombie. With the guidance of the vines, they quickly intercepted the zombie.

In fact, the zombie stopped only after it smelled their scent. As soon as it saw the two fresh human children, it opened its mouth and rushed towards them, but was blocked by Ye Zixu who controlled the surrounding plants.

The zombie used earth spikes to attack from the ground, but Ye Zixu was faster. He immediately used the vines to take him and his sister away, and at the same time controlled the dodder to attack him.

The fast-growing dodders crawled onto the zombies and penetrated their flesh, absorbing them like food. The zombies struggled desperately, but the dodders were extremely resilient, all at level five. The zombies couldn't break free at all. Even if they broke, more vines would grow out from the broken parts, quickly tying them up like a dumpling.

"Xiao Wan! It's your turn!" Ye Zixu shouted not far away.

"Understood!" Ye Ziwan stood on a tall tree trunk without knowing when. She aimed at the zombie's head, injected the venom she had created into the new weapon, and then pulled the trigger.

"Swish!" A cluster of purple venom shot onto the zombie's head, immediately dissolving a large hole. The fifth-level zombie died in an instant. The venom that had not yet been consumed flowed down the zombie's head and soon melted the zombie's torso beyond recognition.

"Xiao Wan is so awesome! His shooting is so accurate!"

Ye Ziwan jumped onto the vine controlled by Ye Zixu and came to his brother's side with his hands on his hips happily, "Hehe, I practice darts in the room every day. But it seems that the venom used this time is a bit too much. I originally planned to just melt out the crystal core, but I didn't expect it to become like this."

The zombie's body was obviously melted into this state by something highly corrosive. In order to avoid suspicion, the twins dragged the zombie into the grove. Ye Zixu dug a big hole and threw the zombie in. Ye Ziwan melted it until there was nothing left of the bones, and then buried it and used plants as a barrier.

After finishing all this, Ye Ziwan suddenly shouted, "Brother, look, there is a big hole here."

Ye Zixu walked over and took a look, "This is the place where the zombie just crawled in. It must have come in from outside. It feels very dangerous. Let's ask Sister Yun."

Yun Shuhuai was attacking when he heard Ye Zixu's voice in the earphone.

"Sister Yun, we just killed a fifth-level earth zombie that drilled out of the ground. There is a big hole on the ground. What should we do?"

"What? Drilled in? I haven't received any news that a zombie can drill in. You did a good job. Of course, the hole needs to be blocked. I will notify the military about this." Yun Shuhuai thought for a while and said, "Oh, by the way, Xiaoxu, the hole is still there, right? Can you help me?"

After listening to Yun Shuhuai, Ye Zixu nodded. He squatted on the ground, inserted a piece of wisteria at the entrance of the hole, and then used his supernatural power to control it to spread rapidly into the hole.