The so-called corpse tide refers to the fact that every once in a while, or half a month, or a month, sometimes two months, zombies will launch an organized attack on human settlements.

It is said that the first corpse tide in the last days, the survivors of the human race have dropped sharply from 400 million to less than 50 million, and since then, the human race has become a mass of scattered sand, falling into anarchy, and can only fight on their own.

The zombies at night are not only very fast, but also have stronger attack power, and it is difficult for ten ordinary humans to resist the attack of an ordinary zombie, so when the zombie tide occurs, humans are like lambs to be slaughtered, allowing zombies to be slaughtered.

However, after that, human beings have come up with many ways to deal with the tide, such as holding on to the city, finding hidden places to hide, digging tunnels, digging trenches, burying traps, etc., but even so, there will still be a large number of wounded people every time the corpse tide is infected.

"My father and mother died in a wave of corpses three years ago." When Zitong said this, his expression was indifferent, as if he was telling someone else's story.

In the end, Fang Hao still didn't know much about the corpse tide, but he also had a preliminary impression, that is, the corpse tide was very special, very scary, and terrifying.

"I'm going to sleep first, tomorrow I'm going to the Fengyun Island Market to buy some arrows for backup, it is estimated that the corpse tide will come in the next few days." Zitong yawned and went upstairs to sleep.

Fang Hao frowned and began to digest the information revealed in her words.

What is Fengyun Island? Is the corpse tide coming in the next few days?

He still has a lot of things he doesn't know about this world, and he still needs to learn from Zitong, he can't drive her away for the time being, and she is also quite clingy, I'm afraid it's not so easy to drive her away.

In order not to be discovered by Zitong, Fang Hao turned off the option of automatic energy absorption in the lower right corner of the screen.

He had seen this option for a long time, and he didn't understand what it meant at first, until he met Zitong, and he realized that the bright light that emitted energy was a small ball, and if it was not automatically absorbed, it could be picked up and collected.

Looking at Zitong's happy appearance when he picked up the little round ball, this thing seems to be of great use to others.

At this time, Fang Hao felt hungry and thirsty, and his satiety and thirst were all about to drop to the danger line, so he took out fried chicken and bottled water to replenish his state.

He didn't see Zitong eating, and he didn't know if she was hungry, but Fang Hao's fried chicken was only enough for himself, and he couldn't take care of her.

After eating and drinking, Fang Hao suddenly remembered that when he used a stone shovel to dig the soil today, he only dug a few times, and he dug a big hole in the ground.

"When the zombie tide comes, it's a good idea to hide underground."

Thinking of it, Fang Hao walked around the various rooms on the first floor, and found that a small storage room was relatively hidden, so he took out a stone shovel and tried to shovel it on the floor.

Sure enough, he only shoveled twenty or thirty times, and he dug a large hole one meter square in the hard ground.

The hole is also bizarre, it is a standard cube, as if measured by a ruler, and the walls are smooth, as if cut out with a knife.

At the same time, there are more than 20 units of stone, sand, cement and other materials in his storage compartment.

Fang Hao was happy in his heart, this method should work.

He listened attentively, Zitong did not go downstairs, he was still not at ease, and deliberately ran upstairs to take a look, and found that Zitong was curled up on the bed, sleeping like a dead pig.

She may not have had a good night's sleep for a long time, looking at the way she sleeps, she is afraid that thunder will not wake her up, which can also be seen that she really trusts Fang Hao.

It must be a little cold to sleep without a quilt in this weather, but unfortunately, Fang Hao had already found out when he searched the house before that all the clothes and bedding in this room were unusable, full of dust, not to mention, they would rot when they were gently pulled, and they could not be used at all.

Since Zitong slept so deadly, Fang Hao was relieved to be bold, and he went downstairs to continue digging.

After digging three squares down, the shovel's durability was gone, so he repaired it again.

After repairing, the stone shovel will lose a certain upper limit of durability, that is, after a few repairs, it can basically no longer be used, and can only be remade.

Fang Hao just dug a few times and rested for a while, and then dug a few more times and rested for a while, and unconsciously, he actually dug a vertical passage more than ten meters deep.

He looked up from the bottom, and the hole above was only the size of the mouth of the bowl.

When digging further down, he found it much more difficult, because there were all stones underneath, and the stone shovel was very difficult to dig, so he tried to dig a few times with a stone pickaxe, which was better than the stone shovel, but it was still very inefficient.

It seems that if you want to dig down, you have to use a higher iron or steel pickaxe.

In desperation, he had to change direction and dig from the horizontal direction, if a large space was dug underground, it would definitely be very useful to hide from zombies.

After digging a few meters horizontally, it was pitch black, he could not see anything, and he had no lighting equipment, so he had to temporarily suspend his movements.

It doesn't take much effort to get out, the system can make wooden ladders out of wood, ten woods, you can make a group of four wooden ladders, a wooden ladder is one meter long, can be fixed on the wall, he only needs to connect the wooden ladder one by one.

After climbing out of the cave with the help of the wooden ladder, Fang Hao found a large wooden board in the storage room and covered the top of the hole.

At this time, it was still dark and it was still early to go to bed, so Fang Hao made hundreds of ground thorns out of wood, as well as dozens of sharp stakes.

The bottom of the spike is more than 60 centimeters wide and nearly 80 centimeters high, it is a standard round cone, the top is very sharp, it is a stronger and more damaging defensive device than the ground thorn, but it consumes more wood and takes much longer to manufacture than the ground thorn.

The most important reason why spikes are better than floor thorns is that floor spurs are not upgradeable, while spikes can be upgraded.

After the stake is placed, it can be reinforced with wood to make it more durable and more damaging.

If he has enough pig iron on hand, he can continue to upgrade the pickets with pig iron, and he can also upgrade them twice, the first time is to inlay a layer of iron sheet on the middle and tip of it, and the second time is to wrap the entire outside of the pickets with iron sheets, when the time comes, these pickets are almost indestructible, even if he doesn't do it himself, these pickets alone can kill the zombies, and the function is very strong.

While manufacturing, Fang Hao walked out of the courtyard and carefully observed the surroundings, placing a circle of sharp piles along the corners of the entire courtyard.

He planned to place at least four layers of stakes or floor thorns around the house, and when the time came, these defenses alone would be able to destroy all the zombies that came to the house.

After placing the stakes, Fang Hao saw that there was still wood left, and originally wanted to upgrade these stakes, but he didn't expect that upgrading the stakes would also make a loud noise, at this time it was already dark, he was afraid of attracting zombies, so he gave up this idea and decisively went back to the house to sleep.