Doomsday: I Build an Infinite Train.

Chapter 449 Entering the Water
"Prepare to launch the Infinity!"

At this moment, all the crew members of the Infinite were standing on the supply platform of the submarine base, looking at the fully modified armed train with different expressions. The train was now covered with a pressure-resistant shell of high-energy structural metal and was forged together as a whole, like a segmented, slender submarine. The windows on both sides were even specially designed with multi-layered composite pressure-resistant portholes - stardust crystal glass, which could withstand the extreme environment of 300 atmospheres.

The purpose of Lin Xian and Mochizuki Shinji in designing these portholes was not for any perverse pleasure of sightseeing, but rather to facilitate the use of their supernatural abilities in response to deep-sea conditions.

Buzz!
The Falcon Fleet members, who were unloading supplies for the submarine on the deepwater port platform, suddenly stopped what they were doing, turned around and looked up at the amazing scene. At that moment, a very special giant train was floating in the air and slowly coming to the sky above the deepwater port.

The next moment, with KIKI and Ryunosuke working together, the searchlight on the front of the Mugen train cleaved through the murky black seawater, like a steel behemoth plunging into the boiling black abyss.

"All right."

"Lin Xian." Chen Sixuan stood by the port, preparing to board the car, and looked at Lin Xian, saying, "Once that geothermal well is detonated, this island may sink. We must leave a certain area."

"I know." Lin Xian checked the time and glanced at everyone. "Everyone, get on the bus first. I'll take Viola to make some arrangements. It should be dark in less than an hour. We only have one chance."

“I’ll go with you!” Upon hearing Lin Xian’s words, KIKI immediately flew over: “I can save you a lot of time.”

"it is good."

"Lin." At this moment, Ryan stood at the entrance of the Abyss-class nuclear submarine and called out to Lin Xian: "I think the pre-set decoy torpedoes are unnecessary. My idea is to cancel the path launch and improvise. What do you think?"

“Yes, it’s possible.” Lin Xian nodded, his eyes gleaming. “If these things can still work.”

With the eruption of Mount Garan and the gathering of sea monsters, the sporadic fires of the decoy torpedoes might not be effective at luring the enemy. This is why Lin Xian wanted to gamble with the geothermal well of the submarine base. However, Ryan's suggestion was also valid; at least they could keep it in hand and it might come in handy in the dark if they successfully escaped this area.

Subsequently, everyone on the Infinity boarded the Infinity in its deep-sea mode. Each carriage had now been transformed into a deep-water compartment. The interior remained largely unchanged, mainly consisting of a special pressure-resistant hull, a deep-sea propulsion system, and a co-pressure and fuel supply module for the inner compartment.

Lin Xian, meanwhile, led Viola and Kiki toward the upper geothermal well.

Wow~
Mo Xiaotian stood by the porthole of carriage number five, looking out through the double window—the train window and the pressure-resistant porthole. Half of the carriage was now submerged in seawater, the surging waves constantly crashing against the window. Looking at the half-submerged, half-deep water outside, Mo Xiaotian's face paled. He turned to Lu Xingchen and said…

"Master, are we... really going to go diving?"

"Are you scared?" Lu Xingchen sat cross-legged in front of the tea table, brewed himself a pot of tea, narrowed his eyes, and admonished Mo Xiaotian with a leisurely waiting look: "Don't panic. Whether it is going down into the boiling abyss or into the furnace of heaven and earth, we are tempering our character in the fire of tribulation."

A ball of fire danced at his fingertips: "Little Tian, ​​listen carefully! Only mortals fear drowning! What you hold in your palm is lightning that can tear apart the eternal night!"

Mo Xiaotian watched as Brother Huo trembled as he brought the teacup to his lips with one hand, took a sip with an indifferent expression, and then shakily put the teacup down, looking completely astonished.

"Understand?!"

"Understood, understood."

The building not far away was curiously inspecting the changes in the deep-sea module inside the vehicle. Hearing Huo Ge's words, it couldn't help but point to the porthole and say to him, "Huo Ge, look at this seawater, it's as black as ink. There must be a lot of strange creatures underwater."

Upon hearing this, Lu Xingchen waved his hand without even turning his head: "It's alright, the underwater monster itself will take care of itself. What's so interesting about water? I'm not watching."

Seeing that Lu Xingchen didn't even dare to look out the window, Da Lou chuckled at Mo Xiaotian, easing the tense atmosphere considerably. Ryunosuke, standing in the corner, crossed his arms and remained silent, seemingly indifferent.

Everyone knows that Lu Xingchen is most afraid of enclosed abyss environments. At this moment, he looks calm on the surface, but his back is probably already soaked with sweat.

In carriage number 3, Chen Sixuan, Shu Qin, Lü Chang, Luo Yang, Xiao Yuan, Qian Dele, Ning Jing, and others were gathered. The blood crystals they had obtained from Ryan's team were all concentrated in a container. Ding Junyi stood in front of the experimental table, the small flower on her head fully blooming, and her whole body shone with a surging green light.

She stretched out one hand, and countless dark green vines radiated out, climbing onto the blood crystals in the container like living things. Whether it was a level one blood crystal, a level two blood crystal, or a level three or four blood crystal, they were all wrapped around it. Then, the concentrated dark energy in those blood crystals seemed to have been drained of its energy source, and it quickly gathered towards the center along the vines!

At this moment, in the center, there was a special plant that had been affected by disaster.

The Silver Dragon is utterly wrong!
"This is the first time I've seen our scientists use their superpowers. This ability looks amazing," Qian Dele said, his eyes shining.

Ning Jing stared at the Silver Dragon Ten Thousand Mistakes Plant with a solemn expression. She knew that it was this disaster plant that allowed them to successfully escape from Star Abyss No. 5. A plant that could generate dimensional bubbles was undoubtedly incredibly magical.

Shu Qin then looked at Chen Sixuan and whispered, "Is there anything we can do now?"

Chen Sixuan frowned and shook her head, saying, "I don't know. As for deep diving... I have no experience whatsoever."

“None of us have any experience.” Qian Dele pointed to the various maintenance robots operating in the air and said helplessly, “We have to rely entirely on these robots and Viola. Once we enter the sea, we can’t run or fly. Even our power armor can’t withstand altitudes above 3000 meters.”

“KIKI and Ryunosuke’s psychic shields should be fine, but I think this is the last thing we need to worry about,” Luo Yang said. “With Brother Lin’s mechanical abilities and Silent City’s technology, I have complete confidence in the Infinity.”

Xiaoyuan nodded nervously and said, "Me too."

“I think we also need a contingency plan,” Ning Jing said. “Our train is fine on land, but it’s too long underwater, and the carriages are scattered.” She looked at Chen Sixuan and said, “We still have the Falcon Sea Group members. Just in case, we should split into teams to prepare how to escape in the water, or rather, each of us should have someone to look after us.”

"Okay," Chen Sixuan said.

In the rear carriage, Sasha confirmed that the "Flying Peach" was firmly locked onto the support frame, and the hydraulic latch made a dull "click" sound.

"Alright, you can't be used underwater, but one day I'll transform you into a starship, or combine you with Brother Lin's giant mecha. That would be much cooler~"

Sasha glanced at her companion with satisfaction, then prepared to return to the front carriage. Her fingertips had just left the cold metal frame and she had just turned around when a faint, unsettling sound pierced through the heavy body of the carriage and the stardust crystal glass of the porthole, seeping in from the unfathomable darkness below.

'Giggle~ giggle...'

It wasn't the splashing sound of seawater lapping against the train body, nor the hum of the propellers; it was a... rustling scraping sensation, as if countless tiny, hard objects were moving along the indestructible, high-energy, pressure-resistant metal shell at the bottom of the train.

The sound was very faint, almost indistinguishable amidst the mechanical noise of the deep-sea mode and the surging of the seawater, but Sasha's nerves tensed instantly, a chill ran down her spine, and she instinctively bent over, her ears almost touching the cold alloy floor. They were in the water now, and everyone knew that the underwater world was unpredictable, so hearing such a sound made her instinctively alert.

"You heard that too?" Just as Sasha was completely focused, a voice suddenly broke the silence of the carriage, startling her. When she looked up, she saw Monica standing at the cabin door.

She wasn't wearing heavy power armor, only an undershirt, but Monica's eyes were glowing faintly, clearly indicating that she had activated her sonic abilities.

"It's down there."

Monica's voice was extremely low, devoid of her usual languidness or teasing. At this moment, her gaze was sharp as a knife, piercing through the porthole and casting a shadow of inky darkness outside that seemed to devour everything.
"They probably haven't discovered us yet. Judging from the scale of the sound, it could swallow our train whole."

"hiss!"

Upon hearing Monica's words, Sasha immediately gasped, a chill rising from the soles of her feet.

"Oh no, Brother Lin hasn't come back yet."

In carriage number 8, Miao Lu, Sun Yuzhen, and others were assisting the Falcon Sea Group members with temporary refuge. These people were arranged to stay in carriages 8 and 9. Vanessa was still somewhat at a loss, after all, it was her first time standing in a train floating in water. If it weren't for the powerful Infinite members, she would have thought she was dreaming.

Inside the carriage, the crowd surged. Under the warm yellow emergency lights, Shiori was using her special ability to help Ah Bai try to calm him down. Xiao Qing walked over to Ah Bai and said, "Coward, cheer up. We all need your perception in the sea. Don't let Captain Lin down."

"Okay...okay." Ah Bai nodded abruptly. From his tone, you could tell that he was still very afraid of going into the sea, but after all, he had experienced a lot of things with Lin Xian, so he wasn't completely panicked.

“It’s normal to be afraid. The more you see, the more you should feel awe,” Shiori comforted him. As someone who also possesses sensory abilities, she understood Abai’s reaction very well.

Unexpectedly, as soon as she finished speaking and picked up a glass of water, her movements suddenly froze, her brows furrowing deeply. At almost the same time, Ah Bai also looked up, and their eyes met.

"...Something's not right!"

Ah Bai's pupils contracted slightly, and his fingers gripped the cup so tightly that his knuckles turned white.

"What's wrong?" Seeing the expressions on their faces, Xiaoqing immediately sensed a dangerous aura, her whole body tensed up, and her supernatural energy began to surge.

"There's something..."

"Under the car!"

Ah Bai and Shiori spoke in unison, their gazes seemingly penetrating the carriage walls and piercing the deep seawater.

"It's huge, and it's passing through the underwater submarine tunnel!" Shiori's expression visibly tensed up.

Xiaoqing's eyes sharpened, and she was about to speak.

"Everyone—!"

Monica's voice suddenly came through the communicator: "Everyone be careful, unidentified creatures have been spotted underwater. Those monsters may have already entered the submarine harbor."

Carriage number three fell into dead silence instantly. Even Ding Junyi's movements of manipulating the vines to extract the dark energy from the blood crystal paused for a moment. She looked up at her surroundings, then at the silver dragon in front of her, wondering if it was because of her actions that it had attracted this attention.

Qian Dele, Luo Yang, Ning Jing, Chen Sixuan... All eyes met instantly. Chen Sixuan nodded to them, and immediately the group dispersed to different carriages to prepare for defense.

Chen Sixuan instructed Xiaoyuan and Luo Yang to stay in carriage number 3 to help, while she walked towards the driver's cab and immediately contacted Lin Xian.

Haiyan Island Geothermal Nuclear Device Well (Core Layer Channel)
Lin Xian, leading a drone swarm consisting of KIKI and Viola, struggled through the massive steel corridor leading to the core of the geothermal well. The air was filled with a pungent stench of sulfur and ozone, and the temperature was so high that it was suffocating. The air was distorted and refracted under the extreme heat, making visibility blurry.

Beneath his feet, the entire island groaned in agony from the continuous, violent earthquakes. Each tremor was accompanied by a sickening metallic twisting sound and the roar of shattering rocks. Dust and small pebbles fell from the reinforced support structure at the top of the passage, hitting Lin Xian's power armor helmet with a dense "crackling" sound.

Ahead, the massive geothermal well reaction chamber resembled the entrance to purgatory. Dark red magma, like a living python, was frantically climbing and spreading upwards along the fractured well wall, greedily devouring all metal structures in its path—thick cooling pipes softened, twisted, and broke under the high temperature, spewing out scorching steam; the huge turbine units emitted mournful cries of unbearable strain, and some blades, engulfed by the crimson magma, rapidly softened and deformed, melting into bright golden liquid metal that flowed into the magma torrent;
The complex control console was submerged in lava, sparking blinding electrical flashes before disappearing beneath the churning, dark red, viscous fluid. Above the well walls, the massive, ancient pressure-supported dome was scorched like flowing wax, dripping molten metal "raindrops" that fell into the churning "lake of fire" below, exploding into large bursts of sparks.

Looking at the scene before him, Lin Xian couldn't help but frown. The induction device had been almost half swallowed up. The reactor had already stopped reacting, and all the energy release ports had naturally stopped releasing energy. He could already imagine the scene of those regional anomalies starting to riot and cause chaos.

"Viola! Drone array, maximum power cooling! Prioritize protection of the main pipe bridge at the 12 o'clock position! KIKI, cover the installation point area with your psychic field. This thing can't be detonated with bombs. Since it's a detonation device, let's release the reactor power to the maximum and use the Earth's core energy to trigger a chain reaction."

"Huh?" Kiki exclaimed in surprise, "You're going to build a hydrogen bomb?"

"Isn't this device for this purpose?" Lin Xian said in a low voice. "It's not that powerful, but if it were to detonate all the geothermal wells, who knows what might happen."

Overloading the reactor would trigger significant instability, making automatic program control impossible. Viola reminded Lin Xian at this moment.
"In other words, we have no way to control the countdown precisely."

"So we need to be quick." Lin Xian's tone was icy as he looked at the boiling lava: "Infiltrate the super vortex as quickly as possible!"

However, at that moment, the dark marking devices on Lin Xian and KIKI suddenly flashed and beeped. Lin Xian's expression changed, and he immediately said, "Level 4 marking? Special level?!"

"Where?" KIKI immediately realized the danger, but looking around, the entire geothermal well was filled with red lava.

Lin Xian also activated his power armor to search carefully, but even after connecting with Viola, he couldn't find any biological signals.

Rumble!
At this moment, the entire island began to experience violent earthquakes, as if mountains and seas were roaring and crashing towards this direction.

Mark the target.

Lin Xian realized he was in trouble, his heart skipped a beat, and he suddenly reacted, shouting loudly at Kiki.
"KIKI, use the shockwave to scan, there's something strange next to us."

"It's invisible!"

(End of this chapter)