High Martial Arts: Slay enemies to become stronger, forge invincibility from billions of corpses.

Song Chen's knife has arrived.

Purple lightning exploded on the blade, compressing all the lightning onto the blade and forming a purple blade beam less than two meters long.

The blade struck the tentacle, instantly severing it.

Lightning spread up the tentacles, electrocuting the severed flesh into charcoal.

The abyssal siren's defensive network was torn open with a single slash, exposing its sac-like body to the blade.

Song Chen's second strike followed immediately, the Heavenly Blade cleaving through the gap and striking the very center of the bag.

The capsule covered with bony plates provides much stronger defense than the two ends.

The blade encountered immense resistance after cutting half a foot in; the bone armor shattered beneath the blade, but the shattering was not fast enough.

The siren of the abyss hissed, this time a scream of agony.

Its tentacles lashed out wildly backward, trying to throw Song Chen off the capsule.

Song Chen did not let go; his left hand also gripped the hilt, and with both hands combined, he pressed the blade downwards.

He released the lightning on the blade, withdrawing all the power of the Nine Heavens Thunderclap. In its place, the golden light of the Illusionary Eye surged from his pupils, spreading along the blade into the inside of the pouch.

In the golden vision, everything inside the capsule became transparent.

Blood vessels, nerves, muscle fibers, and the trajectory of psionic energy flow were all clearly presented before his eyes.

He saw its nerve centers, not one, but three.

Three fist-sized clusters of nerve tissue are located in the upper, middle, and lower parts of the cyst, respectively.

If one mass is destroyed, the other two masses can still maintain the body's basic functions.

Song Chen adjusted the angle of his blade; instead of pressing down, he thrust it in at an angle.

The blade bypassed the first cluster of nerve tissue, bypassed the second cluster, and pierced directly into the third cluster, the deepest one, which was its main nerve center.

The moment the blade pierced the nerve cluster, all the tentacles of the abyssal siren simultaneously stiffened.

The sixteen tentacles, like sixteen taut cables, trembled violently in the seawater.

The light from the luminous organs changed from a pale blue to a ghastly white, then from ghastly white to a dark red, and finally went out simultaneously.

[A fourth-tier alien beast has been killed, gaining 7826 kill points.]

Song Chen pulled out the knife, and blood gushed out of the sac, exploding into a dark red mist in the deep sea.

He shook the blood off the blade, sheathed it, and turned to rise towards the sea.

When Lin Zhao surfaced, she was standing on a reef.

She was holding a pocket watch in her hand, and no one knew where she got it from; there shouldn't be any pocket watches on the island.

The watch cover was open, and she glanced down at it.

"It's only been two minutes and seventeen seconds since you went into the water."

"Now I believe you can kill a fifth-tier beast king."

Her voice carried a hint of barely suppressed emotion.

Song Chen walked out of the water onto the rocks, seawater cascading down his body, and psionic particles shimmering with a ghostly blue light on his hair and clothes.

He held the three crystal cores of the Abyssal Siren in his palm. They gleamed with a deep purple light in the night, and dark red spiritual energy liquid slowly flowed inside, like three solidified hearts.

Lin Zhao stared at the three crystal cores for a long time.

Then she closed her pocket watch and turned to walk into the island.

"Old Zhou is waiting."

Inside the cave, the oil lamp was still lit.

Old Zhou sat at the stone table, in the same posture as when Song Chen left. Hearing footsteps, he slightly raised his head.

Song Chen walked to the stone table and placed the three crystal cores on it.

The sound of the crystal nucleus falling onto the stone slab was very soft, like three pebbles being dropped into water.

Old Zhou reached out, his fingertips touching the first crystal core. He paused for a moment, then slowly moved his hand over, touching each of the three crystal cores one by one.

The surface of the crystal core still retained the body temperature of the abyssal siren. The beast's body temperature was higher than that of humans, so it felt warm to the touch.

Old Zhou's hand stopped on the third crystal core, his fingers trembling slightly.

Thirty-two years have passed.

"I've been here for thirty-two years, teaching the sea creatures navigation, teaching them the laws of the tides, teaching them how to find their way in storms..."

"I am a traitor to humanity."

A deep sense of regret appeared in his eyes. He then removed his fingers from the crystal core, slowly withdrew them, and placed them on his knees.

"Three heads, less than an hour."

"Young man, I believe in you."

Song Chen sat down opposite him.

Lin Zhao walked over from the cave entrance and sat down at the stone table.

Three people were gathered around an oil lamp, and three deep purple crystal cores gleamed faintly in the light.

"Tell me your plans."

Old Zhou slowly drew a circle on the stone table with his finger.

"There are about three thousand strange beasts on the island, the vast majority of which are first and second tier, and they are distributed on the beach, farmland, coconut groves and shallow waters."

"There are about a hundred of them at the third tier, mainly responsible for patrolling and guarding."

"There are six more fourth-tier beasts besides the three you just killed. Two are in the teaching area on the island, responsible for supervising the human instructors. Three are in the experimental area, responsible for guarding the reactor. There is also a messenger beast."

"A fifth-tier beast king, the Abyss Siren, slumbers in the deep-sea trench directly beneath the island."

"It is about 1,800 meters deep. Unless a direct descendant actively awakens it, or the psionic fluctuations on the island exceed the threshold, it will not surface."

"What is the threshold?" Song Chen asked.

"A large number of combat fluctuations of the fourth rank or above, or the death of more than a certain number of sea beasts at once."

"Over the past thirty years, we have repeatedly tested this threshold. The conclusion is that if you can silently kill the messenger beasts and fourth-tier guards on the island without triggering a large-scale battle disturbance, it will not awaken."

Song Chen tapped his fingers lightly on the stone table.

"Therefore, the plan is divided into two steps."

"The first step is to kill the messenger beasts. Kill all the strange beasts on the island that can transmit information to the outside world, turning this island into a blind, deaf, and mute place."

"The second step is to create a disturbance to lure the abyssal sea monsters up from the deep sea."

Old Zhou nodded: "And then what?"

"You just need to lead it up; once it's brought up, that's my job."

Old Zhou didn't ask any further questions. He pulled out another roll of animal hide from a hidden compartment under the stone table.

This animal hide was larger than the previous map, and when unfolded, it almost covered the entire stone table.

The map above is a detailed map of Guangchang Island, clearly marking every piece of farmland, every row of stone houses, every irrigation ditch, and every layer of structure inside the mountain.

More importantly, the distribution of the beasts is shown. Tier 1 beasts are marked with blue dots, Tier 2 with green dots, Tier 3 with yellow dots, and Tier 4 with red dots. Messenger beasts are specially circled in red.

Song Chen looked down at the picture. The golden light of the Illusionary Eye shone deep within his pupils, etching every dot and every line into his memory.

There are seven messenger beasts in total, including four ghost-faced fish demons, which are distributed in the four directions of the island.

The two sea snails, one in the experimental area inside the mountain and the other in the deep water on the east side of the island.

Meanwhile, Song Chen's gaze lingered on the summit of the central mountain on the island, marked with a purple dot.

What's on the mountaintop?

"Sea Serpent Conch, Tier 4, Upper Stage"

"It is the main messenger beast of this island. All messages must be collected by it before being sent to other islands and the beast king in the deep sea."

Song Chen stared at the purple dot for three seconds.

"Then kill it first."