The so-called undersea tunnel is also part of the deep layer.

I don't know how exactly the Underground Federation does it......

The crystal wall that winds to the other end is also made of light ants.

More than half of the tunnel is embedded in the seabed – it is not a semi-circular tunnel, but an inverted U-shaped bridge with an arch bridge on both sides perpendicular to each other.

The seabed is more composed of corpses and feces than soil, which is why it ...... The light it shines with is much stronger than it does in the deep dive layer. The crystal walls are polished to an almost smooth level by the pressure of the deep sea, and they are even strong enough to resist the strong pressure of the ocean floor.

And this "light dragon", which winds and makes noise from time to time, has long since dispersed the approaching underwater creatures.

Of course, not all deep-sea creatures are dispelled by bright light and noise. It is not excluded that there will be animals that can't stand it and choose to attack the crystal wall......

As the five of them watched, a vague black shadow in the distance, like a huge whale with eight tentacles, was projected on the crystal wall. As the train approached, it became clear from small to large.

"What's that?"

Jiu'er asked curiously.

"It looks like some kind of deep-sea creature."

Lin Yiyi stared at it for a while, and finally gave up decisively and shook her head: "Deep-sea creatures." No one can see it anyway, so they just grow ...... It's no surprise what it looks like. ”

But soon, they felt something was wrong.

Because the other party leaned in the direction of the backlight at first, it was very hazy.

However, as the train got closer, they gradually saw what it was.

At the very least, it can be judged that the opponent's body is more than two hundred meters long...... A behemoth without a doubt!

It hovered over the crystal wall, as if thinking about something, as if searching for something.

“…… Is it going to crash over? ”

Looking at the growing black shadow, the four darkened muttered, "If it crashes into it......"

Thinking of this possibility, several people suddenly broke out in a cold sweat behind their backs.

Players can be resurrected, but only if the tunnel is broken by that huge shadow...... Annanke is about to die at the bottom of the sea!

They didn't bother to talk, they looked up at the dark shadow.

I can only hope that it will give up attacking the crystal wall, and there is nothing else it can do......

Or, hopefully, it hesitates a little longer—until the train can cross the Black Sea and reach the northern continent!

Then even if this tunnel breaks, it will be none of their business!

But as the train approached, the monster became excited.

It turned its head and stared at Annan and them.

Only then did Annan see that the other party had miserable white skin, six pairs of eyes, and eight huge tentacles like octopus tentacles, and other than that, it looked like a whale and a shark.

“…… It seems to treat the train like some kind of small fish. ”

Annan whispered, "Everyone, be careful—"

He's not as panicked as the player.

Not really...... He can summon the Tower of Frost the moment the crystal wall is shattered. It should protect Annan from being crushed to death at the bottom of the sea and buy time for rescue.

But at the moment when the huge "submarine whale shark" opened its mouth at them and wanted to bite down.

Without warning, it was swallowed by something even greater!

It's really a mouthful.

If you don't look closely through the crystal wall, you can't see what it is—you can only see a huge mouth with three layers of sharp teeth, suddenly lifting the whale shark from top to bottom.

The other party even struggled a little before being swallowed directly.

“…… That is, what? ”

Nigel was scared out of a cold sweat and muttered as he looked in the direction of the black shadow's departure.

The players were also pale - when this kind of accident was about to happen, they couldn't care about whether they could be resurrected.

It's an almost instinctive fear.

But Annan was thoughtful.

He was probably among all the creatures on the train, including the conductor and the conductor...... The only one who knows the truth.

Because at that moment, a prompt popped up in front of his eyes:

[You have received the new marker "Lower Influence: Leviathan's Breath"]

[If you don't remove it in time, you will fall into a random nightmare with the keyword "sea" in seven days (difficulty: hard).] 】

Leviathan's breath –

This is not the first time Annan has had this impact.

According to Benjamin, when he lost his memory and collapsed on the beach of Frozen Harbor, he was surrounded by the scent of Leviathan. Benjamin then considered that Annan was not a transcendent being, and removed this influence for him.

Another "Leviathan" that Annan knows is a female beast of the sea that appears in Earth mythology. The name "Leviathan" itself means "crack" or "whirlpool", and it is a huge sea serpent capable of coiling around the continent.

And in this world, it exists as one of the three supreme monsters of the mysterious lady.

Now Annan, who has bought a large number of pseudo-canons, already knows what those three-headed monsters are.

As Annan expected......

The three supreme monsters are "Leviathan", "Behemoth" and "Sitz". Among them, the Leviathan is a "giant water snake that travels through all the oceans", can roll up tsunamis at will, and is the king of all sea creatures.

This is exactly what is recorded in the Book of Job, which represents the three largest monsters on land, sea and air...... It is also the prototype of the fathead fish, flightless and green caterpillar. The fathead fish and the flightless fish fight each other, which is also taken from this allusion.

The Underground Federation is a country sheltered by a mysterious lady.

Although she and Lady Silence are not in the Underground Federation all year round, but travel in strange places...... But she couldn't completely leave the Underground Federation alone.

The Leviathan may have been tasked with maintaining the undersea tunnel.

This also explains why the giant sea beast was so hesitant before attacking the undersea tunnel.

It is because of the deterrence of Leviathan!

And when Annan was erased from his memory and left the mysterious lady, it should have been Leviathan who sent Annan away.

Since it's the Sea King Leviathan, not the giant bird Sitz......

Does that mean that the place where Annan met the mysterious lady was under the sea...... Instead of an island?

While Annan was thinking about it.

Soon the undersea train traveled through the sea and re-entered the deep layer of another continent.

Although they are the same light ants, the soil of the continent where the Duchy of Winter is located is obviously different from Noah. Compared to Noah, who is dominated by warm colors such as red, orange, yellow and pink, with a mixture of blue-green tones, the crystal walls of the Duchy of Winter are composed of pure sky blue and light purple...... Even more beautiful than before.

After a few more hours, the train returned to the subway level.

And Nigel is getting out of the car too.

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