The cloudy layer in the solution was removed. After that, the rest of the liquid no longer had any virus. This kind of liquid could be injected directly. It would improve the physical strength of normal people. There were no side effects.
This liquid could also be used on people with powers. It would make their abilities stronger. But injection was not necessary for them. It was easier for them to absorb energy from crystal cores. Injecting the liquid was more trouble for them.
Still, this liquid was useful. People with powers were rare. Most of the people were just normal. To fight against zombies, they still had to depend on regular people. So this liquid that made normal people stronger was very important.
When General Song learned that the lab had made this liquid, he was very happy. He quickly gave it the name Primary Strengthening Agent.
He did not try to hide the discovery. The base was under attack from zombies. At that time, fighting for power was useless. If the base was destroyed, there would be nothing left to fight over.
Also, once their base made this kind of medicine, other bases might make it too. The method was simple. If other bases had the right tools, they could do it too.
So General Song openly told the leaders of the base about the discovery. When they understood the value, they decided to collect more zombie crystal cores. They wanted to use them to make all soldiers stronger.
One shot of the strengthening medicine could increase someone's physical strength by two to three times. The effect was a little different for each person. But the result was clear and powerful.
After proper training and full absorption of the energy, the effect could be even better.
The energy in the crystal cores could change human cells. It could improve the body. It was like a miracle. But it was hard to believe that this kind of thing came from inside zombie brains.
The strengthening did not last forever. There was a limit. After they made the medicine, they had some people try it. The final result showed that the highest strength it could give was ten times normal strength.
That was the limit for a normal body. Only people who had powers could go past that level.
Even without powers, a person with ten times the normal strength was like a superhuman. They could tear apart evolved zombies easily.
That was also normal. Each shot of the medicine was made from ten crystal cores. To reach ten times the strength, they needed ten shots. That meant one person would need the energy of one hundred crystal cores. Of course, they would be stronger than evolved zombies. At that time, the base had not yet met any level two zombies. They were very happy with how strong the soldiers became.
Now that the base had this new power, the leaders felt much more at ease. Even if zombies came to attack, they believed they could stop them.
After testing the medicine, the leaders had a meeting. They were not sure if they should let normal survivors buy it.
After talking it over, they agreed to let normal people get it too.
The process to make the medicine was easy. The cost was low. Each shot only needed ten crystal cores. The liquid could be reused.
Also, the base needed the survivors. If too many died, there would not be enough people to protect the base. And they were not giving it away for free. They sold each shot for twenty crystal cores. That was double the cost.
Even if the base had strong people, they could not match the number of survivors. Helping them get stronger would make the base stronger too. Then they could collect more crystal cores and grow faster.
Even so, the survivors were very excited. They thought they would never get a chance to grow stronger. Now everything had changed. As long as they could collect enough crystal cores, they could become strong too.
Eric said, "Captain, should we accept a mission to go kill zombies? Our team has three people with powers. We need more crystal cores for them to get stronger. And now the base is selling medicine that can make our bodies stronger. We normal people can also become fighters."
Kei answered, "Yes, we must go hunt zombies. If we don't go now, others will grow stronger and leave us behind. We need power to stay alive in this world. But there are too many zombies in the city. Even with over one hundred people in our team, we cannot fight that many evolved zombies. Let's start near the base. Because of the virus rain, no one has gone out. The zombies on the road were not cleaned up. That's why the base gave out this mission."
Eric said, "Our teammates haven't worked together yet. They don't have teamwork. Killing the nearby zombies first will help us build that trust. After that, we can go to other places."
Even though they had food from their trades, they still needed crystal cores to become stronger. So they had to take the team out to fight zombies. The reason they had gathered so many people was not just to scare others. The real reason was to kill zombies more effectively.
When Kei's team gathered and got ready to leave the base, Huzi noticed right away.
He said, "Boss, I saw Kei's team is getting ready to leave the base. Should we send someone to follow them?"
"Great timing, I'm also planning to take a mission to hunt zombies. We'll follow them and see where they get all those supplies," Arthird said.
Arthird brought his men to follow Kei and the others. But they didn't know that this time Kei's group wasn't going to meet Tracy. So even if they followed, they wouldn't discover anything useful.
After trading with Kei's group, Tracy noticed that for half a day, no one else came. She had no choice but to go back to the real world.
But Tracy knew she had to find a solution. If she couldn't find more people to trade with, how would she ever wake up the spirit of the shop?
The world was too dangerous now. After the virus rain, zombies had become stronger.
If she went outside to find customers, she would die. She was just a normal person. How could she let more people know about her shop without going out?
The only people she had contact with were Kei and his group. But they wouldn't help her promote the shop. It didn't benefit them.
Unless she gave them enough profit to make it worth it. Tracy thought about it. That idea wasn't good either.
Even if she couldn't leave the space shop, there were still other ways. She could make flyers and spread them.
Maybe someone would read them and get curious. They might come to her shop and try their luck. Her area was not that dangerous anyway.
Tracy went to an advertisement print shop to print the flyers. But when she stood at the door, she realized she had already left too many clues.
She couldn't leave another one. So she didn't go inside. She bought a printer and decided to print the flyers herself.
This way it stayed secret. It also cost less. She had to print a lot of flyers.
If she used the print shop, it would be expensive. After taking the printer home, Tracy designed the flyer.
She added the shop's location, what she sold, and the prices. Now she only needed to find a way to send them out.
Besides flyers, she also thought of using radio signals. She could send the shop information and location on repeat from her space shop.
For the flyers, she tied them to sky lanterns. The lanterns floated without control, so she didn't know where they would land.
It was up to luck. She bought many lanterns and spent the night tying flyers to them and letting them go.
In the apocalyptic world, near Tracy's shop, one lantern after another floated into the sky, glowing and drifting with the wind.
Tracy had no idea where they would go. She had spent a lot of money on this.
Even if it didn't work, she wouldn't do it again soon. It cost too much.
So many lanterns in the sky were very noticeable. Tracy's shop was not far from Dawn Base, only a few kilometers.
People in the base also saw the lights. "What is that? Is it a monster?" a survivor in the base asked.
"I think those are sky lanterns. Who would send so many now?" another person said.
"Yeah, they are lanterns. I thought it was something dangerous.
If that many glowing monsters came to attack the base, we'd be in big trouble," someone else said.
When they saw it was harmless, they went back to rest. In the apocalypse, they needed to save energy.
Tomorrow they still had to go hunt zombies. Tracy stretched her arms. She had finally sent out all the lanterns.
She looked at the sky. These were her hard work. Now it all depended on fate. Would anyone get the flyers?
After working for hours, Tracy went back to the real world. She lay down on her bed and went to sleep.
Tomorrow she had to interview some workers. Her small supermarket in the real world was ready.
The shop was clean, the shelves were full. She just needed some staff before opening.
The shop was a small supermarket. It sold many different things. Now that she had a stable supply source, it would be easier to sell items in the apocalyptic world too.
Because Mayor Zhang helped her, Tracy got all her business licenses quickly. It took just a few days.
The next morning at 8 o'clock, Tracy arrived at her shop to wait for the job applicants.
Soon, the people came one after another. Tracy checked their information and picked three people.
Her requirements were simple. They only needed to know how to use a cashier and be willing to work hard.
"Ronibeth, Roger, Mariela. I've looked at your files. You meet my needs. I've told you about the pay already.
When can you start?" Tracy asked.
"We can start anytime," they answered.
"Good. Then start tomorrow morning. There must always be two people in the shop.
Since it's new, it won't be too busy yet. If it gets busier, I'll hire more.
You will handle cashier, shelf stocking, and other tasks. I'll do the restocking. I won't be here every day.
If something happens, call me directly," Tracy said.