Only a few hours later, the road was piled high with corpses, a truly horrifying sight.
Anna glanced at it once and felt herself trembling all over, as if the temperature around her had changed and it had suddenly become the dead of night.
Just then, a series of hurried footsteps came from downstairs, and then someone started knocking on the door.
Lu Yuan looked down and saw a man wearing a leather jacket with a panicked expression on his face, waving and knocking on the door upstairs.
Lu Yuan caught a glimpse of it and didn't know what the other person was going to do. So he turned to Anna and said something.
"I'm going down to take a look. You stay here and don't move. No matter what happens, don't come out. If there's a fight or any other robbery, don't go out either. I'll take care of it first."
Hearing Lu Yuan's words, Anna nervously grabbed his hand: "I have a gun, why don't we go down together?"
"Silly girl, we haven't even figured out if they're friend or foe yet. Let me go take a look first. Don't be too nervous. Maybe they're just out of oxygen and have come to buy some."
After saying that, Lu Yuan turned around and went downstairs. When he got downstairs, he saw that the oxygen tank on the man's back was emitting a red light, indicating that the oxygen inside was decreasing rapidly and would soon be exhausted.
Upon seeing Lu Yuan open the door, the other person hurriedly stood in front of it, pointed to his oxygen cylinder, and said bluntly, "Brother, brother, help! My oxygen cylinder is about to run out. Can you sell me one? Price is negotiable, how about one gold bar?"
The other party quoted a price that Lu Yuan had never even dared to think of.
A gold bar—that's such a high price!
Normally, it only costs two gold coins to fill a bottle of oxygen.
Even yesterday evening, the price of oxygen only rose to ten grains of gold.
One gold bar is roughly equivalent to one hundred gold dusts, and the other party is exchanging them so readily, it seems they've run out of options.
Lu Yuan looked at his oxygen cylinder, and then at the other oxygen cylinders in his room.
"Okay, I can change it for you!"
The other party thanked him profusely and handed him a gold bar, then impatiently turned on the switch of the oxygen cylinder he was carrying.
The few words he had just spoken had consumed a lot of his oxygen, causing him to have difficulty breathing and his face to have an unusual purplish-red tinge.
Just as he was about to suffocate, he finally managed to buy oxygen. He opened the oxygen outlet to its maximum opening and sucked up the last bit of oxygen.
His face visibly changed color from bluish-red to normal red in an instant. After taking deep breaths of the last bit of oxygen, he felt much better. He skillfully unfastened the oxygen cylinder and then replaced it with a new oxygen cylinder handed to him by Lu Yuan.
After he finished changing the oxygen cylinders, he expressed his gratitude and then looked greedily at the other oxygen cylinders in Lu Yuan's room: "Brother, how many more days can your oxygen cylinder last? How about you sell me another one?"
Lu Yuan shook his head: "Sorry, that's all the oxygen we have left. If you really need more oxygen, come find me again tonight!"
The other party's face immediately showed a look of surprise. He had just asked casually, but he did not expect Lu Yuan to ask him to come and see him again at night. Could it be that the other party had some other oxygen?
At this moment, Lu Yuan shrugged and said, "To be honest, I have an oxygen concentrator, but it requires some direct current. You probably know how expensive fuel is right now, about the same as oxygen! The price of oxygen has skyrocketed, which is a huge burden on my fuel consumption. So, if you want to use it, I can give it to you, but the price..."
The other party immediately understood Lu Yuan's meaning and replied, "Of course, of course, the price is negotiable!"
Lu Yuan nodded today, and then sighed as he watched the other person turn and leave.
Just then, Anna heard the sound of a door closing downstairs, and she quietly ran downstairs.
"Did you still tell him that they have an oxygen concentrator?"
"Yes, I thought about it and decided to tell them directly, but I guess they won't tell too many people."
After all, there are tens of thousands of people living here. If we were to reveal this too easily this time, they probably wouldn't even have a chance to use us. These people are smart; they wouldn't do anything foolish!
Lu Yuan looked at the several oxygen cylinders in his room and then began to produce oxygen.
His oxygen generator is different from other oxygen generators. It comes with a filter that can filter out impurities from the seawater, making it more effective, but it consumes a lot of fuel.
However, one advantage is that its oxygen has no fishy or foul smell, and it smells much more pleasant than the oxygen outside.
In a short while, the water in the bathtub in the room had been completely separated by the waves.
The oxygen cylinders were already full, and Lu Yuan and his companion were just waiting for the customer to arrive.
Sure enough, about two hours later, footsteps were heard again outside.
Lu Yuan looked down and saw a group of people outside. They were all wealthy people from the neighborhood, each carrying a jar and various other items.
So Lu Yuan waited for them to knock on the door before slowly walking downstairs.
Pushing open the door, Lu Yuan found it amusing to see the pale faces of those people.
So he called everyone downstairs, and after they entered the room, they heard a sputtering sound coming from inside.
This is the sound of the oxygen concentrator when it's working. When people hear this sound, they feel it's like heavenly music and not noisy at all.
Immediately, someone took out a gold bar and slammed it on the table, and the rest of the people followed suit, slamming all their gold bars on the table as well.
Lu Yuan smiled broadly and pointed to the canisters in the corner, saying, "These are all pre-filled bottles of oxygen. Those who have paid can take them themselves; one gold bar per bottle!"
So everyone paid their money and then collected their oxygen cylinders.
Soon everyone had collected all the oxygen cylinders, with a dozen or so people still having them. Meanwhile, oxygen production was still underway.
Several people stood in front and waited. After about two hours, everyone received oxygen and left Lu Yuan's residence satisfied.
In just a few hours, Lu Yuan had earned more than thirty gold bars, which was almost enough to make up all the money he had spent since he was released from prison.
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