"What should I do with oxygen?"

"Simple, the soul-absorbing candle in the West Sea can meet this need. Although it was not used to do this, it can indeed provide oxygen after it is lit."

Several blue candles appeared in the old hand full of thick calluses. Charles had seen this thing once. It seemed to be a medium for summoning little black people in paper.

He really didn't expect that this thing could provide oxygen.

After walking around the boat, Charles nodded with satisfaction. He is worthy of being a top ship designer. He has thought about what he had not considered.

This level of transformation is no less than rebuilding a new ship, but these people actually did it in just one month.

"Yes, I like it very much. Although I didn't say it before, I will prepare the cost of the ship's transformation for you."

Hearing this, the old man with eyes showed a proud expression on his face. As a designer with ingenuity, he hoped that every ship he designed would be recognized by every employer.

But he soon threw away this emotion, after all, he is still imprisoned now.

The old man hesitated for a few seconds and asked, "Governor General, since the ship has been built, as agreed, should we go back?"

"Don't be anxious. There's also a trial sail." Walking to the deck, Charles snapped his fingers below.

The crew member who had already prepared the situation rushed up excitedly and prepared for a trial voyage.

As the Narwhal made a low whistle, she began to sail towards the dark sea.

After a few hundred meters away from the ship, Charles patted the ship's side with his hands. "Man, let me see it one by one."

"KaKaKa~" The gear machinery on the rear deck began to rotate. Under everyone's gaze, the steel plates on both sides slowly gathered up like egg shells.

"Swoosh swish swish swish~" All the ropes on the deck shot around instantly, and the handle wrapped around the inside of the iron plate began to pull it out.

"Touch!" Two steel plates collided with each other on top, making a muffled sound.

If someone looks from the outside, the Narwhale at this time becomes a semi-elliptical iron ball.

There is no gap left in this iron ball. In front of the iron ball, a few small thick glass windows are left to facilitate observation from the inside and outside.

Although you can see, your vision is greatly limited and you can only look straight ahead.

Since it is a trial sailing, of course it is to test the ship's diving function.

Under the leadership of the designer, the sailors went to the cabin to open the water injection valve.

As the water tank slowly filled with sea water, the entire ship slowly dived into the water.

When the entire ship completely entered the sea water, everyone on the ship suddenly felt a sense of chest tightness. They instinctively increased their breathing, and the feeling was like water smearing their chests.

Sailor West's face looked extremely ugly. He had a premonition that this mission was probably not as simple as last time.

"It's okay, there's no water leakage, everything is normal." Charles quickly patrolled the boat and walked straight to the cab.

The decorations in the cab have also changed. There is a round raised screen on the front of the steering wheel, which looks like a very simple TV.

"This is sonar, we finally found it. Be careful of this thing. If this thing breaks, you will be blind at the bottom of the sea."

After the old man said that, he pressed a red button with his hand and the screen lit up.

"Dou~" A small white circle slowly spread out from the middle of the screen. After a few seconds, another round started again.

After all, Charles has watched TV, so of course he understands what this means, which is similar to the sound wave detection in his bat form.

With this thing, anything appears around the ship and can quickly react on the screen, whether it is alive or dead.

"Doudu~" the sonar's voice suddenly began to rush. A large group of highlights were showing on the screen, approaching the Narwhal at a very high speed.

Everyone in the cockpit suddenly felt a little suffocating, and the old man's eyes trembled with his hands like a sieve. He couldn't figure out why as soon as he opened it, something came over.

Before everyone could react, several big mouths with three circles of shining teeth were directly printed on the glass of the observation mouth.

This scene scared many people and screamed loudly.

Just as Charles was about to order the torpedo to be launched, the hideous mouth on the glass disappeared, and several red rays of swaying back and forth in front.

Charles glared at the second mate Feuerbach next to him, "Is it interesting?"

That's not an emergency, it's just this guy's shark.

Feuerbach smiled heartlessly, and he patted the old man's shoulder with his hand on the scared, almost paralyzed man. "Hahaha, Captain, I think everyone is too nervous, so I'm just kidding everyone."

Charles turned his head and looked at the bandage at the helm, "Centered with Hope Island, circle around. Let everyone adapt to the underwater work."

The silent bandage nodded and began to turn the steering wheel.

"As for you, since you are very idle, come with me." Charles pulled Feuerbach's collar and walked towards the captain's room.

Working on water and underwater is definitely different. As a captain, you must allocate your working hours to ensure that each of them has reasonable work and rest.

The underwater environment was darker and more depressed by the water, and the crew members had difficulty adapting, but one person on the ship adapted quickly.

Lily lay at the glass observation port in front of the deck, marveling at everything outside, and under the illumination of the searchlight, she could see the style in the sea.

Although it was pitch black at an age, Lily still enjoyed watching it.

Just as she laughed and watched a blue-shelled nautilus being knocked away by a submarine, a big hand reached out and grabbed her in her hand. It was Charles's hand.

With his furry head on Charles's hand, Lily said happily: "Mr. Charles, I just saw something that glows in purple, so beautiful!"

"Stop looking, this is nothing on the island for the time being. If you go to the sea outside, things outside can make you have nightmares."

"Oh, can I watch it for a while now? I won't watch it after we go out to the sea."

Charles held her to walk into the cabin, "Take your mouse to try new weapons underwater, this is your gunner's duty."

Just as Charles raised his foot and was about to enter the cabin door, he saw the bandage in the cockpit waving to him.

Charles had just arrived at the cockpit and glanced at the nautical chart next to him, and found that he had not driven too far, just about forty miles away from Hope Island.

"There is something that has been discovered..." The bandaged finger pointed to the sonar.

On the upper left of the ship is a highlight that is twice as big as the ship, constantly shining.

"Is it moving?"

"No...look...like dead..."
Chapter completed!