Desperate Night.

Chapter 91 091 Rune
The new research method requires the strengthening time of the black seal. Fortunately, after Yu Hong synthesized the spiral rune and pyroxene, the countdown was only a few minutes.

He waited for a while and got a small pyroxene with a brand new rune.

Picking up the pyroxene, he observed the runes on the surface.

'The new rune combines the enhancement rune and the vortex rune. It is not a simple merger. The position and order of the internal symbols have changed. But the material of the pyroxene has not changed. It is still ordinary pyroxene.'

He took out the enhanced detector, placed it next to the pyroxene and pressed it.

beep.

The value displayed on the detector LCD screen is: -7.221.
"It's no different from before the test." Yu Hong frowned slightly. He had tested the data before taking out this piece of pyroxene, and the data fluctuated up and down.

The red value of ordinary pyroxene is actually very small, and it is mainly determined by its volume.

After ordinary pyroxene is mined, it will slowly break into pieces of similar size over time.

"Perhaps the vortex rune itself does not have an immediate effect. Perhaps it needs time to develop." Yu Hong took out a pen and paper and made notes again.

The white paper now recorded a large number of previous attempts, and using the black seal, he had ruled out many possible directions.

"What if I use the vortex rune to draw it alone?" Yu Hong thought of another idea.

He quickly took a small piece of pyroxene and picked up a charcoal pencil to draw a swirling rune on it.

Then use the red value detector to test again and record the data.

But the result is still useless, no change.

Yu Hong was not discouraged and changed to other things as the carrier of the vortex rune.

He tested it with water grinding little by little.

It was gradually getting dark again.

"Huh? Why did it get dark so quickly?" Yu Hong came back to his senses from the experiment and looked at the peephole at the gate.

He took out the enhanced communicator, which had turned into a small square plastic box with four speakers around it.

There is a row of buttons and knobs at the top, with functions and numbers marked on one side.

Yu Hong studied it and found the switch at the bottom of the side, then turned it on with a click.

hiss.
Suddenly, a clear electric noise came from the speaker.

But soon, the noise disappeared, replaced by a faint sound of talking.

".Four days, at most four days we will face it."

"There are too many people and there are still a lot of supplies. Reduce them and drive them out."

"I don't agree. We have all been through the hardest times together, and now it's happening to us."

Several people seemed to be arguing on the communicator, and Lao Li's voice was among them.

He seemed very calm and gave the longest time the existing supplies could last, but the rest of what he said was not very clear.

Yu Hong reached out and tapped the communicator, making a popping noise.

The noise was so loud that it immediately attracted the attention of the other side.

"Old Li? Can you hear me?" he asked in a deep voice.

"Yes, it's very clear. Is the signal so good over there?" Li Runshan was a little surprised. Obviously, he didn't know the quality of the Black Seal products.

"Okay, to make a long story short, I have something to consult you about." Yu Hong said quickly. Although he and the other party agreed to open the communication at a fixed time every day, the electricity used for communication cannot be wasted in vain. If there is no communication, he will choose to turn it off to save power and wait until the next day.

This function is actually very inconvenient and backward. Yu Hong really wants to complain why this thing can't be made like a phone, with a ringtone or vibration to remind people, instead of having to turn on both phones for communication.

"What's the matter?" Li Runshan was also very satisfied with the quality of the call.

"I went to the ruins cave and found another rune similar to the pyroxene rune, but this rune seems to be useless. I wonder if you have any research on this?" Yu Hong asked his doubts bluntly.

He didn't believe that other people who were exploring the ruins would not study the vortex runes, so if he could get some clues from the post office, it would save him a lot of time and energy.

"The one you mentioned has indeed been studied. To be precise, there are not only these two runes in the ruins, but also several other runes that you have never seen and have never appeared on the market. But there is actually only one that has been studied and found to be effective. It is the pyroxene enhancement rune that we use." Lao Li replied quickly.

"If it's useless, why is it painted on the stone wall of the ruins?" Yu Hong frowned.

“I don’t know about that. Maybe the scholars who study the ruins will know something. But when I contacted my superiors just now, I found that the previous anti-interference communication is now also subject to strong interference, and the signal is quite unstable. I suspect that the changes in the external environment have also had a great impact on the communication.” Li Runshan’s tone revealed a trace of worry.

"No matter what, we must be prepared for a protracted war," said Yu Hongdao.

"Okay, let's stop talking. It's getting dark. I hope there won't be a bloody tide tonight." Li Runshan said.

Yu Hong responded and the two disconnected.

call.

He let out a long breath.

"Has the communication with the post office been affected? What if we lose contact with them?"

There was a hint of worry in his eyes.

Without contact, the supply team may not come often. If we don’t increase the intensity of the field work now, the supply team may not come again.

"If the pyroxene grass outside can't dispel the blood tide, then I have to rely on the gate of my cave to resist it. But the current strength of the gate may not be enough to deal with the blood tide."

After quickly assessing the possible dangers, Yu Hong decided that he had to strengthen the gate.

The mother and daughter in the yard outside will leave sooner or later, so don't worry about them. But if the supply team can't come, they can only rely on themselves and be completely self-sufficient. 'Reinforce the gate, and increase the volume of the safe house to leave space for storage and breeding. It is also best to separate washing and excretion to prevent moisture from causing mold. There is also a training space and a test laboratory. It is best to reserve as many cabins as possible at one time to prepare for future expansion.'

After determining the future plan, Yu Hong drew a rough diagram of the underground cabin structure and initially decided to develop five cabins. One of them should be as large as possible for indoor training experiments.

After deciding on the locations of the cabins, he looked outside.

It was completely dark outside the door, but there was no blood tonight, just quiet darkness.

There was no moonlight in the sky as the moon was blocked by clouds. The only source of light was the occasional starlight peeking out from between the clouds.

Outside the cave, the pyroxene grasses in the yard swayed slightly in the wind, emitting a soft and bright white halo.

Yu Hong had a nap during the day and was now full of energy, so he simply cooked some protein soup. After eating, he started practicing.

After concentrating on training for three hours in one go and using up as much energy as possible, Yu Hong was just about to end his training and take a rest when he suddenly stopped at the last moment.

hiss.
A slight sound came faintly from his abdomen.

At this moment, a large number of unknown strange particles from the outside world are penetrating through the white skin fat layer, through the red muscle layer, and continuously drilling into the location of Yu Hong's Dantian.

These particles are much finer than sand and dust, and they appear to be real objects, yet they can easily pass through entities, as if they were illusions.

This strange state lasted for more than ten seconds and then slowly disappeared.

"What is this?!" Yu Hong gently touched his abdomen and found that his body temperature there was slightly cold, as if it had just touched ice, icy cold.

And inside his abdomen, he could clearly feel that a new, cold internal energy was slowly appearing there.

"I have finally cultivated the first internal energy of the second level!" Yu Hong compared it with the description of the heavy leg skill and finally breathed a sigh of relief.

Without internal energy, although his physique was greatly strengthened, he still did not feel solid enough.

Now that his internal energy has been accumulated again, it gives him a great sense of security.

"Now that I have the internal energy, I will start expanding the basement tomorrow!" He felt at ease again.

Internal Qi is not only a very strong endurance trump card, but also can accelerate the recovery of pyroxene grass, and can also provide more energy for the strengthening of black seals. It has a wide range of functions.

After deciding on the plan for tomorrow, Yu Hong finished his training and prepared to go upstairs to rest.

But at this moment, a flash of inspiration came to his mind, making him stop and stand still.

'Wait! Since the wall can be strengthened as a whole, the formation can be strengthened as a whole, why can't the safe house be strengthened as a whole? ? '

Standing in the green light, the light in Yu Hong's eyes became more and more obvious.

He stood still for a moment, then suddenly squatted down and pressed one hand on the ground.

'Strengthen the entire safe house, direction: increase the number of cabins by 5. Improve the hardness of the wall and moisture resistance.'

After silently giving the request in his mind, Yu Hong waited for Hei Yin's feedback with great anticipation.

laugh.

A black line emerged from the black mark and merged into the ground.

Then comes the wait.

one second.

two seconds.

three seconds.

Five seconds.

Finally, a cold mechanical voice sounded in his ears.

'Do you want to reinforce the entire safe house?'

At the same time, huge black countdown numbers appeared on the ground under Yu Hong's feet.

'24th, 11:7.'

"It really works!" Yu Hong opened his eyes wide and suddenly became very excited.

He knew exactly what this meant. It meant that in the future, when expanding and renovating the safe house, he would not need to learn techniques or find people to help him. He could just rely on the black seals to continuously synthesize and strengthen it!

"Since strengthening the entire safe house is feasible, then I can also strengthen each cabin separately! "

Yu Hong was greatly encouraged and delighted, as if his mind had been opened. He quickly stood up, walked to the wall, and stretched out his hand to gently press on the wall.

'Strengthen this cabin, direction: add a connecting cabin, the number is 1.'

This time he did not add five cabins at once, but only one cabin. He did not strengthen any of the others, just to determine how long it would take to strengthen the cabin.

Soon, black lines flowed out and a countdown appeared on the wall.

'4th, 11:2.'

"It's only been four days! This is much faster than if I dug it myself!" Yu Hong was shocked and a look of joy appeared on his face.

Although he was now much stronger and his physique had greatly improved, it was much more difficult to chisel stones than to dig soil. So even with his current strength, it would be impossible for him to dig out a good cabin in four days.

"The key is that after the black seal is strengthened, it is very likely that everything will be perfected for me. The flatness of the wall, the integrity of the entire cabin, and the aesthetics will be much better than if I did it myself."

(End of this chapter)