In the drowsy evening, a plate of oil residue, a plate of fried meat with bamboo shoots, only three or two friends and a pot of wine were missing.

Yu Fei was feasting, just a short time, a plate of oil residue had all been put into his stomach, and a plate of fried meat with bamboo shoots was still left.

Touching his round belly, Yu Fei ate too comfortably and was a little supportive.

"This day is getting better and better, and there is more and more hope!"

Yu Fei's eyes lit up, and they were full of longing for the future.

opened the trading center, and all the plant fibers traded on it were bought, 79,281 copies of plant fibers, and a total of 792,810 catties of stones were exchanged for Yu Fei!

Walk quickly to the crafting table, take out all the stones and put them in the crafting table, and start making the stones!

In the interval of waiting, Yu Fei was not idle, but took advantage of the fact that the night was not yet dark to practice archery on the stone platform.

Although the hunting of wild boars today went very smoothly, Yu Fei was not complacent, but was reflecting on whether he could do better.

After all, he could easily win today by relying on that big tree, and if it weren't for the big tree stuck in the boar's fangs, he really wouldn't have been able to kill it.

In order to shoot his prey more easily and quickly in the future, Yu Fei desperately wanted to improve his strength.

And now the fastest way to improve your strength is the ability of 'Bow and Crossbow Mastery'.

Arrow after arrow, Yu Fei did not use 'Heiqing' to practice shooting, but used the iron bow he made before to practice. Because although the power of "Heiqing" is enough, the consumption of each string pull is not small, and enough power is needed in the battle, so it doesn't matter if the consumption is large, but there is no need for such a big power in practice, just to reduce consumption and shoot a few more arrows, after all, no matter what powerful weapon Yu Fei uses, the proficiency obtained by shooting the same number of times is the same.

In an hour, Yu Fei shot more than 600 times, from an arrow in two or three seconds at the beginning, to an arrow in more than ten seconds with a sore arm in the back, Yu Fei never stopped.

More than 600 shots have increased Yu Fei's proficiency by more than 300 points, and now the proficiency has 335 points, and he still needs 665 proficiency points, that is, 1330 shots can be upgraded. Based on the current 600 times an hour, it only takes more than two hours to upgrade.

Yu Fei had a certain idea, and decided to spend 2 hours tomorrow morning to upgrade the 'Bow and Crossbow Mastery' before doing other things.

Back in the safe house, all 792,810 catties of stones were made into stones, and a total of 132135 stones were obtained. Of these, 196 are white quality and 2 are blue quality!

【Stone】:

Quality: White.

Attribute: Hardness +3.9.

Notes: Very good stone.

【Stone】:

Quality: Blue.

Attributes: Hardness +20.1, Weight +10.3.

Notes: Outstanding quality stone, it's no longer just used as a stepping stone.

Looking at the two different grades of stones, Yu Fei had a bold idea in his heart, if the safe house was all strengthened with white quality or blue quality stones, how strong would the defense of the safe house be!

Yu Fei excitedly opened the interface of the system safe house, and there are two ways to improve the safe house, one is [strengthening], and the other is [upgrading].

[Strengthen]: Use materials to strengthen a certain part or whole of the safe house.

[Upgrade]: Use the safe house core to upgrade the safe house and get new features.

The so-called 'safe house core' is to kill other survivors and turn the killed into a safe house. In other words, if you want to pass the [Upgrade] path, you can only kill other survivors!

From these simple words, Yu Fei saw a bloody scene, in order to upgrade his safe house, there must be many people who are willing to hunt others! Although Yu Fei is not a person who loves to kill, if he encounters someone who deserves to die, he will not leave his hand.

Click on [Strengthen], and the page suddenly changes, and the materials owned by Fei that can strengthen the safe house appear, including wood and stone.

[Choose the 'stone' overall fortified safe house, you need 90,900 pieces!] 】

Seeing this huge number, Yu Fei's passion was immediately extinguished. If it is gray quality stone, he is naturally enough, but there are only 196 white quality stones, and even a fraction of it is not enough.

It was only 1 second after he was lost, Yu Fei suddenly thought that his safe house was embedded in the stone, except for the door, the rest were all surrounded by stones, such a heavy mountain, such a hard stone, upgraded with ordinary quality stones, is there a big difference between upgrading and not upgrading?

Not too!

So Yu Fei only needs to strengthen the door!

When the door is selected, the number of stones needed suddenly emerges, and 750 pieces are needed!

White quality stone is still not enough! Not to mention the use of all blue quality stones.

"There is only one day left before the end of the safety period, and if you can't get 750 blue quality stones in this day's time, then mix them with gray, white and blue quality stones first!"

His thoughts were racing, and in a moment, Yu Fei made a plan.

Now that the plan is planned, all that needs to be done is to implement it, and the first step in implementation is to get a lot of stones. Obviously, with so many stones, it is impossible for Yu Fei to do it alone, but fortunately, there are countless survivors who are willing to provide Yu Fei with stones, and only if Yu Fei comes up with enough payment.

Open the trading center, Yu Fei put the stone on the shelf.

【Stone】:

Quality: Grey.

Serving size: 10 pieces.

Selling price: 66 pounds of stone.

Seller's note: The large amount is preferred, saving your time in production, and speeding up the pace of strengthening your safe house, what are you waiting for, hurry up and buy it!

【Stone】:

Quality: White.

Serving size: 1 piece.

Selling price: 6666 pounds of stone!

Note: You only need 6666 pounds of stone to get 1 white quality stone, what are you waiting for? Slow hands!

6 catties of stone can be made of 10 cm long, 10 cm wide, 10 cm high stone, no matter what the quality of the stone is made, its specifications are 10 * 10 * 10 cm, and the other difference is in the texture and weight. The gray quality stone weighs 6 catties, and the white quality stone weighs about 6 catties, but the blue quality is different, and their weight is as high as more than 50 catties!

However, no matter what the quality of the stone is, the raw materials required are only 6 catties of stones, and as for the extra weight of high quality, Yu Fei does not know, which is not what he can explain at present.

10 gray quality stones were only exchanged for 66 catties of stones, and Yu Fei only earned the difference of 1 stone.

For the average person, it doesn't take much time to make stone from a crafting table, but for some, they are willing to exchange it. After all, it is better for them to save a little time by using the crafting table more times to increase their proficiency and chances, and it is better to save a little time and open more stones, or cut down trees, or craft other items.