Deep-Sea Navigation

Linsey's reason for suddenly jumping into the water was simple.

He discovered neither the wicked lurking underwater nor the playwright altering fates in the water.

He suddenly jumped into the water, and there was only one reason.

The treasure location marked on the [Hidden Sea Chart], a reward from the [Bitter Journey of Love] quest, is located underwater in this direction.

Adhering to the basic strategy of 'since we're already here'.

Linsey naturally wanted to go underwater to investigate and dig out the thing marked on the [Hidden Sea Chart].

Below the water's surface.

Linsey equipped the catfish head, immediately gaining unrestricted movement in the water.

Seawater absorbs and scatters light very strongly.

When you first enter the water, you can still see the red lights swaying and floating on the street when you look up.

Further down, the longer wavelengths of red light are absorbed by the seawater.

All that remained were blue and green lights, shimmering and twisting in the seawater.

As we continued to descend, all we could see was utter darkness.

"..."

"This is much darker than any cave or canyon."

Linsey complained.

Even with his exceptionally sharp vision, it would be impossible for him to see in such complete darkness.

So Linsey rummaged through her bags.

He took out the Underwater Illuminator he had previously crafted from Five-Colored Jellyfish while fishing and put it on his head.

The Underwater Illuminator is a small and cute jellyfish-shaped lamp.

This equipment is soft and gentle on the skin.

Linsey reached out and squeezed it, and the soft Jellyfish Lamp lit up, illuminating the surrounding water.

"Hmm... it's quite interesting?"

"Squeeze it again."

Linsey reached out and pinched it again.

The Jellyfish Lamp changes color accordingly, with the options being red, green, blue, yellow, and white – the colors of jellyfish.

"Does this count as having RGB lighting effects? A 300% improvement in diving performance?"

Having solved the lighting problem, Linsey continued his descent.

Because his underwater bioluminescent body is so conspicuous, there are always some strange little fish swimming around him.

According to Wala Wala and Yao Xing.

Dangerous creatures have been completely eliminated from the waters near the City of a Thousand Sails.

Linsey did not harm the creatures and, as expected, did not encounter any danger.

In the deep, dark sea.

Linsey continued to dive, and soon even the sea fish disappeared.

He was surrounded by only a ring of light illuminated by himself, and all he could see was a hazy expanse of seawater.

Looking into the darkness in the distance, the stark contrast between light and darkness creates an even stronger sense of oppression.

How many meters did I dive?

"At this speed, it should be over a thousand meters by now, right?"

Linsey felt uneasy.

Theoretically, the maximum pressure the human body can withstand is approximately between 50 and 70 atmospheres.

Therefore, the theoretical limit for underwater activities is a depth of 500 to 700 meters.

But in reality...

Even professional deep-sea divers rarely go deeper than 300 meters.

Linsey can still move freely underwater entirely because his Constitution of 63 points is too amazing.

Even so, they continued to dive underwater endlessly.

The ever-increasing pressure will eventually become unbearable for Linsey.

"The only good news... the breathing capacity provided by the equipment, without the threat of nitrogen anesthesia or oxygen toxicity... Hmm?"

Just then, good news finally arrived.

Linsey had not yet seen the seabed or anything else in her line of sight.

However, the outline of the ground has already appeared below in the display of his [Map] skill.

As time passed in a somewhat numb way, Linsey finally approached the bottom of the water.

"Luckily, my Constitution can handle it."

"This kind of treasure map is not something that just anyone is qualified to take."

Linsey sighed and accelerated her descent.

Soon, the map revealed a larger area of seabed topography.

What surprised Linsey was...

The Plant Expert's Backpack and the Professional Prospector's Pointer also came into play at this moment, marking out scattered locations for collecting plants and minerals in the surrounding area! Linsey approached the marks on the map while also visiting these resource collection points in the deep sea.

First, there are plants.

Under the light of the Jellyfish Lamp, a plant resembling cauliflower came into view.

This plant's body structure is covered with tiny holes, just like an enlarged cotton candy.

"It's... a bit hot here?"

Linsey tried to collect it.

The temperature of the surrounding water began to rise rapidly.

Fortunately, the temperature change was still within his tolerance range, and Linsey approached and successfully collected the plant.

[Abyss Clump Algae]

[Deep-sea plants completely lose their ability to photosynthesize, surviving solely on chemical substances from hydrothermal vents or cold seeps. They can be used to extract chemical materials; to make alchemical potions; and also as food for cooking.]

[This plant is extremely difficult to collect and therefore highly valuable.]

High value! This description immediately occupied Linsey's entire mind.

Without saying a word, he began to count the surrounding collection points, moving around the hydrothermal vent and collecting every single Abyss Clump Algae.

After collecting them all, Linsey had 27 more [Abyss Clump Algae] in her inventory.

Next, examine the extracted substances and the synthesis formula.

[1 Abyss Clump Algae = 5 Electrolytic Gel + 1 Deep Sea Hydrothermal Fluid / Deep Sea Cryogenic Fluid + 3 Sulfurized Fibrous Body]

[1 Abyss Clump Algae + 1 Icebound Water + 1 Glass Bottle = Sea Oath Potion]

[1 Abyss Clump Algae + 5 gels = 10 Deep Sea Coating]

[1 Abyss Clump Algae + 3 Poseidon/ Volcanic Shell Powder + 1 Deep Sea Fish Oil Abyss Heart Potion]

"It's quite feasible, isn't it?"

Linsey was in a great mood.

Except for the final [Heart of the Abyss] potion.

[Abyss Clump Algae] He has already met the requirements for both decomposition and item crafting.

The only problem is that Linsey is currently in the deep sea.

There's simply no way to take the alchemy potion Workbench out and operate it.

In short—

"After collecting the plants, the next step is the minerals!"

Linsey steadied herself and continued swimming toward the marked mineral spots.

There was a thin layer of sediment on the seabed. When Linsey swam on it, it felt like her toes were sinking into fine sand, and her body sank slightly, but she was quickly supported by the coarse sand and gravel below.

He continued forward for a while.

However, after looking around the seabed, they still couldn't find the corresponding mineral.

"..."

"It can't be what I'm thinking, can it?"

Linsey realized something was wrong and promptly switched Game Module.

He completely overlapped his location with the minerals marked on the map, and then a line of text appeared on the seabed beneath his feet.

[Mining sites are formed by marine sediments that bury the actual earth's strata, requiring digging downwards to obtain the corresponding ore.]

"..."

Linsey blinked in the water.

The ominous thing he had foreseen finally happened.

So he reached out and pinched the Jellyfish Lamp above his head, adjusting the lighting to change his mood.

Then, Linsey began to calculate, referring to the map.

"Hmm, this distance... hahaha!"

"Undersea mining—does that mean digging through hundreds of meters of sediment first?"

"No one has ever shared any experience with me in this area!"