It was an exhaust fan on a subway air conditioner. It was covered with dust and looked ordinary.
The moment Dean saw this thing, he thought of several things in his mind. Exhaust fan, air conditioner, air conditioner, low temperature, ice! That's right, it was ice!
His eyes lit up. In this ruined city in the wilderness, all the things from the old era were either rusted or destroyed by weathering. It was almost impossible to find an airtight bag that could seal the smell of blood on Aisha's body. But there was one thing that could do it, and that was ice!
"Now is the black snow season. The temperature is low, so it's easy to get ice..." Dean's eyes flashed slightly as he looked outside the subway carriage. Gusts of cold wind blew in through the broken window. He could vaguely see the hazy sky outside. It was estimated that there would be heavy snow soon.
However, he didn't intend to wait for the snow. This kind of thing that left fate to God's arrangement was never his first choice. Moreover, the falling black snow contained too much nuclear fallout. Not to mention nuclear radiation, because of the nuclear fallout, the black snow couldn't accumulate into ice like ordinary snow. Instead, it would be like loose sand that couldn't be mixed.
"I can only make ice by myself. If it snows now, I can use the low temperature of the black snow to condense the water into ice. But looking at the weather, even if it snows, it may be tomorrow or the day after tomorrow. I can't wait that long." Dean's eyes swept around the collapsed wall outside the subway. He didn't find what he wanted. It should be because the humidity here was not heavy enough.
He glanced at Aisha who was lying on the chair, took a deep breath and said: "I hope your luck won't be so bad." He no longer hesitated and quickly drilled out of the window.
He quickly came to the outside of the collapsed subway. He flapped his wings and flew up. He turned his head to look at the surrounding buildings. Suddenly, he saw a collapsed building near the collapsed subway. The building was entangled with large vines and covered with a thick layer of moss.
Dean's eyes lit up and quickly landed. At the same time, he kept part of his attention to the vicinity of the subway. Once a monster appeared, he would immediately rush back to stop it.
"Found it!" When he landed outside the building and pushed aside a vine, he immediately saw a cluster of snow-white granular stones stuck to the building like frost at the corner of the wall where the building was in contact with the ground. His eyes lit up, and he quickly broke it off and tossed it into his backpack. Then, he quickly collected along the corner of the wall, removing all the white granular stones that were stuck to the building.
"Good luck." Dudian didn't think that it would be so easy to find so much saltpeter.
This substance was one of the components of gunpowder. When combined with sulfur, a powerful gunpowder could be made. The principle behind it was its strong ability to absorb heat!
This saltpeter usually grew in shady corners, caves, and other places. It was a natural ore and was also an excellent material for making ice quickly!
Soon, Dean had collected a backpack full of saltpeter. He was also holding a handful of saltpeter in his hand. He had collected all the saltpeter under the collapsed building. Due to the angle of the building, the corner of the wall was not exposed to sunlight all year round. That was why so much saltpeter had grown.
The reason why Dean thought of making his own ice was that he had seen saltpeter growing on the walls of the ruins many times in the wilderness.
Whoosh!
His figure quickly returned to the front of the subway carriage and went in. He glanced at the still unconscious Aisha and knew that her body was being eroded by the poison. He sighed in his heart and reached out to take out a rusty metal sheet from the subway carriage. He rolled the handful of saltpeter in his hand into a ball. This tough iron sheet was like paper in his hand. He kneaded it at will, and soon it became a completely sealed metal ball wrapped in saltpeter.
He stuffed the ball into his backpack, then carried Aisha with both hands and quickly rushed out of the subway carriage.
Although he had found the material for making ice, there was too much smell of blood in this place. He had to leave as soon as possible. It was not suitable as a hiding place.
Moreover, he had to find a place close to a water source.
Previously, when he was looking for a hiding place with the Shadow Hunter eggs, he had flown over a lot of places. Among them, there were several places with water sources. He immediately rushed to the nearest water source hiding place.
Whoosh!
While flying at high altitude, Dean suddenly noticed that there was a rumbling sound coming from the ground. He saw a few monsters nearly three meters tall, strong, and wolf-like figures rushing down the street. Their direction was the direction of the subway where he was previously hiding.
He secretly rejoiced in his heart. Fortunately, it didn't take much time to find the saltpeter, otherwise Aisha would be in danger.
The hunting monsters didn't notice Dean passing by in the sky. Both of them quickly crossed each other and went far away from each other.
Seven or eight minutes later, Dean finally arrived at the place where the water source was more abundant. It was a collapsed square. The road surface of the square had completely sunken, and there was a big pit at the bottom of the square. After years of accumulated rain, it had become a big pool.
Dean's thermal vision saw that there were only some red heat sources as thick as a finger in this sunken square pool. It should be the germs that fell into the water from the monsters that had been drinking here for a long time. He stared at it, and his pupils shrank slightly. The pool in his sight seemed to become a lot more transparent, and he saw an underground drainage channel under the pool.
He looked in the direction of the channel and didn't see any heat sources. He no longer hesitated. He covered Aisha's nose and mouth with one hand and held her body with the other. He quickly swooped down and crashed into the square pool.
Splashing high waves, he rushed into the water at full speed with Aisha in his arms. His legs were swinging, but his wings were still flapping vigorously. His wings were not feathers, but a kind of hard shell-like wings after the skin layer hardened, which could also be used as a help in the water.
Whoosh!
His body swam straight, and his speed was so fast that even ordinary fish might not be able to swim as fast as him at the moment.
The tiny heat sources scattered all over the pool seemed to sense the movement and quickly swam in Dean's direction. But their speed was relatively slow, so they couldn't catch up with Dean. They just followed behind him, and soon gathered in groups. They chased after Dean along the flow of water, seemingly sucking the blood diluted from Aisha's wounds along the way.
Dean quickly swam to an underground drainage channel connected to the pool and swam along the channel. His pupils were always in a state of miniature, so the things in front of him became a little transparent, and he could see the scene in front of the channel.
He swam quickly, around the corner of several channels, and suddenly saw a dark cave-like channel.
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