"Then how can we get out later?" Liu Feng asked again.

Zi Yan House instantly understood what Liu Feng meant. He stood up and looked around. He found that this place seemed to be a closed space. At the end of the exits on both sides, there were endless surging water curtains! [bsp;    Zi Yan House's face suddenly became strange.

At this time, the rest of the people also recovered one after another. Liu Feng no longer paid attention to Zi Yan House and counted the number of people, only seventeen, and three were missing!

Liu Feng's expression was a bit bad. In this environment, once he was washed away by the undercurrent, he might have died and never lived. Of course, he might not have seen his flashlight and continued to dive to the bottom of the sea.

Only when he can think of this now, he will feel a little better. After all, as long as he is not caught in the vortex and dives to a critical point, those people will retreat, which is better than death.

"Everyone is looking for an exit separately!" Liu Feng ordered the soldiers of the Douqi Division. Although the surrounding environment is simple, the area is not small. Maybe there are some missing places. In any case, you must first find the retreat. If you cannot find the retreat, you will be trapped to death here. Even if there is a lot of cold iron, it will be useless.

More than ten minutes later, everyone returned to their original place with a dejected look. The atmosphere became more solemn, and a sense of panic involuntarily rose in the hearts of everyone.

Zi Yan House was still calm. He put away his usual cynical smile, looked up at the crack as thick as an arm in the air, a gleam shot out of his eyes, and said, "Is it possible for us to expand the crack and get out of here?"

Liu Feng shook his head. This idea had already appeared in his mind. It flashed by and was abandoned by him. "The thickness of this crack is at least seven feet. It is composed of deep-sea cold iron with extremely high purity. It is difficult for human power to break it. Moreover, the speed of the water flow on it was amazing. Even if you could go out, you might be driven to a more dangerous place by the undercurrent."

Zi Yan House frowned: "Anyway, I'll try it."

As he said that, he took off his diving suit, moved his muscles and bones, took out a dark hammer, swung it round, and smashed it at the cold iron in the air. With a bang, only a piece of cold iron the size of a fist fell off. This made him eat it. His hammer was made of mysterious metal that exceeded the SS level. Although it was not large in size, it weighed hundreds of kilograms. With his own strength, he only smashed such a small amount.

Although he was surprised, he was not discouraged. He smashed more than a dozen hammers in succession. When the heavy metal hammer in his hand also became bumpy, a slight crack finally sounded, and a crack as thick as a thumb appeared on the rock wall above his head. This crack was more than three feet long, obviously the pattern of the deep sea cold iron. However, the crack did not crack horizontally, but longitudinally, which surprised Zi Yanhous slightly and immediately took the hammer away. The direction of the crack was very problematic. If it continued to smash, it would not only not create a way of life, but would cause collapse. At that time, the sea water would pour back, which would really cause self-destruction.

Three hours passed quickly, and everyone tried their best, but they still couldn't find a suitable solution to get out of trouble.

Zi Yan House also lost all her previous confidence. He glanced at Liu Feng and asked in a negotiated tone: "Hi, Lieutenant, why don't we ask the headquarters for help."

Liu Feng, who was leaning against the corner of the wall, closed his eyes and glanced at him with an idiot, without an answer.

Zi Yanhous was slightly stunned. He suddenly remembered something and quickly took out the electronic tactical board. There was a snowflake on the tactical board, and the communicator also lost its signal. In this deep-sea cold iron environment, the interference to the electrons was too serious.

At this moment, Liu Feng, who was sitting opposite him, suddenly jumped up and pressed his hands towards the wall behind him. Just now, he seemed to feel the wall shaking slightly, and a faint movement came from the other end of the wall!

Zi Yan House was a little far away and did not notice the moment. Just when it was inexplicable, Liu Feng quickly pointed to the rock wall pressed by his palm, "At this position, swing a few hammers, whether we can go out is here."

Zi Yanhous widened his eyes, pressed the hammer on his shoulder, looked at Liu Feng with a serious look incredible, and opened his mouth: "Lieutenant, you are not kidding."

Liu Feng knew that he was a little unbelievable, so he patted the wall and signaled Zi Yanhous to put his ear on.

Zi Yan House did as he said. After a few seconds, his face changed and his tone became a little strange: "Is there something alive inside this wall?"

"It's probably true." Liu Feng nodded and said his guess: "I guess the wall made of deep-sea cold iron should not be solid, and there seems to be traces of excavation. This means that someone should have dug it here a few years ago, and it takes a long time to form the landform of the seabed. Therefore, a few years ago, this was already this kind of environment. Those who excavate always had to leave a way out. They could not have a mistake like us. There would definitely be a relatively safe and secure passage so that they could return to the shore safely. If they are lucky, if they break through the rock wall, a passage would appear, and maybe it would lead directly to a natural cave on the island of Cuttlefish Island."

After hearing Liu Feng's words, Zi Yanhous' eyes lit up. He was also a smart person. After a little analysis, he felt that this possibility was very high. He immediately laughed: "What Lieutenant Liu said makes sense. Let me smash it a few hammers."

As he said that, he shook his hand and patted a three-star magic rune that blessed the power into his shoulder. His muscles emitted a faint light, and his strength immediately doubled. He raised the hammer with both hands and knocked hard towards the wall.

Boom! Boom! Boom! Boom!

Each knock would produce a sound of shell explosion. The surface of his Xuan-level iron hammer turned red, rubbing with cold iron ore, sparks splashed everywhere, and deep-sea cold iron as big as a fist kept falling from the wall.

After knocking down a layer of rock, a black shadow appeared faintly from the other side of the rock.

"Be careful, the guys inside may be difficult to deal with." Liu Feng reminded.

Zi Yan House laughed and didn't care. The raindrop-like heavy hammer fell on the rocks continuously, and the surface of the hammer was covered with uneven marks.

Boom!

A collapse sound came, the last layer of rock wall was broken, and a dark passage appeared in front of it.

Song!

A sharp scream came from inside, and then a black shadow rushed towards Zi Yan House.

As the first heir to the Bauhinia family and one of the youngest majors of the Hurricane Group, Zi Yan House reacted quickly. While the black shadow rushed over, the black black-level iron hammer in his hand was raised high, and the hammer shadow like raindrops hit the black creature.

Hula! Bang!

The black shadow was hit more than a dozen times in the air, and it hit the dark passage behind the rock wall heavily, falling heavily on the ground, and could no longer get up.

Zi Yan House showed no mercy and continued to step forward and knocked the creature to death.

Liu Feng was secretly surprised by Zi Yan House's strength. It seemed that it was completely unnecessary to worry that the creature would cause trouble.

Zi Yan House, who had just returned, shook his arm holding the black giant hammer slightly, and waved his hand to retract the giant hammer. At this time, Liu Feng noticed that there were inches of inch long but deep scars on Zi Yan House's arm, which were obviously left behind by the short battle just now.

Zi Yan House seemed to be careless and laughed: "Lieutenant, I have to admire your wisdom. It seems that you guessed it right. This road is almost certain that you can take us out of here."

Liu Feng breathed a sigh of relief and used his mental ability to detect the environment within a hundred meters in the passage, but found no signs of life activity. Then he sent a soldier who was good at reconnaissance to detect the terrain and ordered him to return to report immediately if there was any situation.

Half an hour later, the reconnaissance soldiers sent the news back. It was indeed a secret passage leading to the inside of Cuttlefish Island. The exit was in an inconspicuous cave in a bush forest on the island. When everyone heard the news, they breathed a sigh of relief.
Chapter completed!