Castle of Black Iron

On the west side of Qianlong Island, there is a densely reef beach. The beach is under a steep cliff over a hundred meters high. From the beach to the cliff, there is only a winding path that can pass. The reefs and cliffs of this beach They are all different from other places. If you look closely, the color of the stones reveals a slight blue metallic luster. This area is the iron beach on Qianlong Island where sea blue iron ore is salvaged.

It was noon, the sun was burning like fire, and the sea was full of waves. In the sea area of ​​Iron Beach, more than 20 teenagers were working hard to salvage sea blue iron ore.

The pieces of reefs protruding from the sea surface, although it is impossible for ships to approach them, at this moment, those reefs have become the best bases for those who salvage sea blue iron ore.

With a sound of water, on the sea surface next to a house-sized reef on the sea, Zhang Tie emerged from the water, breathing in the fresh air on the sea, breathing out all the foul air in his body. After coming out, the whole body heaves slightly with the waves.

"Zhang Tie... Do you want to come up and take a break? It's noon, let's eat something..." Zhang Hongsheng, who was already so tired and basking on the reef, greeted Zhang Tie weakly.

Right next to Zhang Hongsheng, Wei Wu, who was lying motionless on the reef like dried salted fish, was even more tired at this moment and couldn't even speak.

There was another splash of water, and Zhang Yunfei, who was a little pale, came out of the sea next to the reef, and then swam to the edge of the reef with some difficulty. After climbing on the reef, he lay down weakly.

"I still have some strength, and I can go on again..." After speaking loudly to Zhang Hongsheng, Zhang Tie's head lowered, one slammed, and two feet slapped on the water before diving into the sea again.

"Zhang... How long did Zhang Tie dive this time?" Zhang Yunfei asked Zhang Hongsheng while panting.

"It's been almost 20 minutes, shit, it's a monster!" Wei Wu sat up from the reef, gritted his teeth and said, "This guy was only good at planing yesterday. He couldn't even dive. He was sinking. In order to learn to dive, he finally had to jump into the sea with a big rock in his silly way, making the other guys laugh and hurt his stomach. I didn’t expect this stupid method to really make him learn to dive. , I only practiced for a day, and today this guy is eager to make money..."

"Oh, don't say it, it hurts self-esteem. I have been here for more than a month, and now I can barely dive underwater for fifteen minutes. This guy only came here the next day, and now he spends less time underwater. It’s already longer than me. This is how people are better than people. It’s maddening..." Zhang Hongsheng also sighed, "Maybe the blood of this guy’s awakened ancestors is related to water. I heard that this blood was also found in Qianlongtang before Over..."

Several teenagers were talking on the reef, and there was another splash of water. Zhang Keliang exposed his head on the sea next to the reef. After taking a few breaths, Zhang Keliang looked at the reef and said, "Zhang Tie, he is coming up. Yet?"

"Come up, just went down again..." Zhang Yunfei replied.

"This guy..." Zhang Keliang shook his head and smiled bitterly. After two breaths, he dived again.

...

Next to it are clumps of beautiful corals, and there are beautiful small fishes swimming between the corals. The seawater of the iron beach is as clear as a mirror. The sun shining on the sea is reflected by the waves and the silver on the seabed. On the white sandy beach, a large scale of twisting fish scales are formed, which is so beautiful that it is not in the world.

The sea is a colorful world, and the splendor here is far from comparable on land.

Zhang Tie was like a clumsy but curious little fish, his eyes widened, looking at the fantasy underwater world that he had never seen before, while trying to swim towards the trench nearest to him.

The topography of the sea here is very strange. The sea is full of deep trenches with a width of more than ten meters and a width of tens of meters. The deep trenches grow from small to large, from shallow to deep, extending step by step into the sea, between each deep trench. , All have a drop of more than ten meters. In the distance, in deeper places, the width and depth of these deep trenches become larger and longer, and the sea blue iron ore is in the deep trenches. Under the sand.

These deep trenches are like the terrain carved by glaciers millions of years ago. Zhang Tie doesn’t know why there are these special sea-blue iron ore under the sea here, but since there are those exposed on the surface of the land. The iron ore, then it shouldn’t be surprising to have such a thing on the seabed.

Of course, the sea blue iron ore near Qianlong Island belongs to Huaiyuantang.

The current Zhang Tie, because he has just learned to dive, is not proficient in diving skills. Although he can hold his breath for a long time, he can barely dive to that depth and search for sea blue iron ore in a trench of more than 30 meters.

Those in Zhixingyuan who are more familiar with water can dive to a depth of 50 meters or more to find aquamarine iron ore. The deeper the place, the greater the size and quantity of aquamarine iron ore. .

A small amount of green marine plants like aquatic plants grow in the trench. Under these plants, there is a layer of soft silver fine sand. Those sea blue iron ore are buried under these fine sands, some of which are large. A part of it will be exposed, and the faint blue brilliance flashes in the water. The color contrast of these things is very strong, which makes people feel pleasing to the eye.

Zhang Tie just found two fist-sized pieces of sea blue iron ore in the sand of the trench, and was about to put the ore in a wire sacks not far away. Zhang Keliang had already swam over and gestured to Zhang Tie in the water. A gesture, which means to make Zhang Tie pay attention to safety...

Zhang Tie nodded under the water. In this water area, it is not absolutely safe. I heard that there are people from Lingtianyuan guarding the water in the distant sea area, which will bring some dangerous and mutated oceans close to the iron beach. Creatures are hunted and killed, such as those mutated magic sharks, but there are also many dangerous things below the surface of the water within one kilometer of the iron beach. Poisonous sea urchins and highly poisonous sea snakes can also make people careless. Seriously injured or killed, especially sea snakes, once bitten, if you don't go ashore to take antidote within five minutes, you can die.

The antidote for sea snakes is 20 silver coins. This is something everyone must bring in addition to dry food. Of course, among all these people, Zhang Tie, who had just come here and hadn't earned a silver coin, was naturally excluded.

This time, after staying under the water for less than 20 minutes, he found more than ten kilograms of sea blue iron ore. Zhang Tie slowly felt that his chest was getting tighter, and he held on for another minute or two, feeling this Zhang Tie, who stayed a little longer this time, floated up again, exposed his head to the surface of the sea, took a couple of breaths, and then swam back to the reef and climbed up.

The elementary submerged fish breath technique is also a skill that requires continuous proficiency and training to use it better and better.

Zhang Tie was able to do this within two days, which surprised many people, but Zhang Tie still felt a little dissatisfied. In the water, Zhang Tie felt that he was still very jerky, not proficient and agile, whether it was the persistence time or the body's movement response, and the effect of the elementary diving fish breath technique had not been fully realized.

It should be better! Zhang Tie said to himself, but looking at the eyes of Zhang Yunfei and several people looking at him, Zhang Tie knew that this kind of thing couldn't be anxious, so he could only do it slowly like practicing iron blood **** fist.

Although physically he could hold on for many more times, Zhang Tie didn't want to be too eye-catching, so he climbed onto the reef and basked in the sun and ate dry food to rest.

A few minutes later, Zhang Keliang also swam up and sat on the reef to rest, drink water and eat dry food.

From morning to now, five people have been fighting in the water for four or five hours. Except for Zhang Tie, all of them felt very tired.

Looking at the endless sea, eating dried meat and dried fruits on his hands, Zhang Tie felt like he was back in the Crescent Grassland again. The wind was blowing, and waves of grass were surging on the grassland. It's the waves.

Thinking of the Crescent Grassland and the wild wolves, Zhang Tie slapped his forehead fiercely, and cursed himself in his heart, Zhang Tie, you are a pig, how can you forget about this? Isn't it just practicing beginners? Submarine fish breath technique and diving? Are these two things difficult to practice with the iron blood **** fist? Have you forgotten how your iron blood **** fist is trained? Have you forgotten your soul tribulation fruit?

"Hahahaha..." Zhang Tie suddenly laughed, causing Wei Wu, Zhang Keliang and others to look sideways.

"What's the matter?" Wei Wu asked.

"I just remembered a funny thing suddenly!" Zhang Tie said thiefly.

"What fun thing?"

"I found out that I haven't seen what a sea snake looks like!"

"Ah, crazy..." Wei Wu curled his lips, and several others rolled their eyes.

"Where are there more sea snakes near here?" Zhang Tie asked Wei Wu.

"Are you going to die? You still think you have too much money. A sea snake's detoxification potion costs 20 silver coins, which is enough for you to work for a day!" Zhang Hongsheng said.

"It's okay, I'll see what the sea snake looks like. I'll be prepared for it in the future. Even if I get bitten, I will borrow your antidote for a while, and then I will return it to you after earning money!" Zhang Tie said with a grin.

"Do you really want to see what the sea snake looks like?" Zhang Keliang looked at Zhang Tie seriously.

Zhang Tie nodded.

"It's over there..." Zhang Keliang pointed to the left one hundred meters away, slightly revealing a few table-sized scattered reefs. "There, there is a large red seaweed forest under the reef. I last month It was bitten by sea snakes there. The sea snakes here like to hide in the seaweed forest. They have black and white circular stripes on their bodies!"

"I'm going to see..." Zhang Tie said, stood up from the reef, plunged into the sea, and swam quickly towards that side...

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