84: A powerful enemy appears, PX-0!

Looking at the 'PX-0' inscribed on the opponent's metal faceplate, the four people present frowned slightly.

Their gaze went past the opponent.

The blue crystal rift at the end of the hall was shrinking at a visible rate.

Elder Ye reacted instantly.

"Did he intentionally leave this guy to prevent us from Transmigration through the space-time rift to catch him?"

"Hmph, just a mere..."

Su Lei suddenly spoke up to remind them: "Be careful, this guy's Qi and blood level is extremely exaggerated, far exceeding the level of a Fourth-Order Martial Master."

"Grandmaster-level?"

The other three's eyes sharpened, and they carefully scrutinized the opponent.

The half-human, half-machine monster stood still like a statue,

but when it bent its knees slightly, that naturally flowing starting posture clearly displayed the Grandmaster aura of orthodox Martial Skill.

Chen Xuan suddenly thought of something, and his expression instantly turned grim.

"This stance... could it be Grandmaster Liu, who went missing from the Martial Alliance Association back then?"

"To think he actually died here and was made into a biological weapon..."

Zhao Tianhe suddenly erupted, his muscles bulging like steel bars beneath his combat uniform.

He stomped forward, his military boots cracking the metal floor in a spiderweb pattern:

"The space-time rift is about to close, there's no time to waste here."

"Let's finish this quickly!"

As if responding to his Battle Intent,

PX-0's crimson electronic eyes also locked onto the four.

Cold data streams flickered deep within its pupils.

A emotionless, mechanically synthesized voice echoed through the empty underground base.

"Biometric identification complete. Threat Rank: Extremely High."

"Purge program initiated."

Zhao Tianhe instantly tensed all his muscles, the instincts honed by years of battlefield experience making him adopt a defensive stance immediately.

Chen Xuan's right hand was already on his sword hilt, veins on the back of his hand winding like a Coiling Dragon.

His eyes were sharp as knives, and he reminded in a low voice: "Do not be careless."

"If he really used that Senior as a blueprint..."

Before he finished speaking, a wave of Qi suddenly burst from PX-0's position.

"Left side!" Elder Ye roared like thunder, thrusting his right palm forward.

His palm left afterimages in the air, and the Protective Aura erupting from his palm solidified as if tangible, distorting the air within ten meters in front of him.

"Boom—!"

Amidst the deafening explosion, PX-0's metal fist, carrying hurricane-like power, actually tore through the solidified Protective Aura!

"It can actually break this old man's..." Elder Ye's expression changed drastically.

Before he finished speaking, PX-0's figure appeared in the air, its fist only an inch from his nose.

In a flash, Su Lei's eyes exploded with cold light, the Qi and blood in his body surged like raging waves, and a thunderous sound echoed from his bones.

He clenched his right hand, and Mental Energy instantly condensed into a translucent, invisible blade.

Countless forces wrapped around the blade, also mixed with a hint of golden Protective Aura.

"Slash!"

With a flash of the blade, PX-0's mechanical arm snapped off.

Su Lei didn't hesitate, his right leg whipped out like a whip, kicking hard into the opponent's chest.

The metal armor dented and deformed under the immense force, and PX-0's entire body flew backward like a cannonball!

Zhao Tianhe seized this fleeting opportunity, stomping his military boot on the ground, the concrete exploded, and gravel flew.

He shot out like a cannonball, his right fist infused with his entire Protective Aura, and a blue light surged from his fist.

"Die!"

Before his fist arrived, PX-0 twisted its body in mid-air, its mechanical palm precisely gripping his fist.

"Strength assessment: First-Order Grandmaster level."

"Recommended disposal method: pulverize."

As soon as the cold mechanical voice fell, PX-0's five fingers suddenly tightened!

"Crack—snap!"

Amidst the spine-chilling sound of bones breaking, Zhao Tianhe's right arm was twisted into a pretzel!

Blood gushed out along the twisted muscles.

He groaned, and beads of sweat instantly appeared on his forehead.

He gritted his teeth and raised his right leg, attempting to counterattack, but PX-0's movements were even faster!

"Bang!"

A metal foot, like a battle-axe, chopped down, directly crushing his knee!

Zhao Tianhe groaned, dropping to one knee.

Just as PX-0 was about to deliver the killing blow, a faint sigh came from the side.

"It even inherited the Martial Skill and fighting style, what a pity..."

Chen Xuan's figure appeared behind PX-0 like a ghost.

The moment his longsword was unsheathed, the temperature of the entire underground space plummeted.

Ice crystals condensed on the sword's edge, tracing a brilliant blue trajectory through the air, heading straight for the opponent's nape!

"Got it!" Chen Xuan's eyes gleamed.

Clang—

Screech!

Amidst the ear-splitting sound of metal grinding, Chen Xuan's expression froze.

His blade had indeed struck the target, but it only cut in three inches before getting stuck.

A layer of Protective Aura appeared on PX-0's body,

and the terrifying recoil instantly snapped the ultra-alloy forged blade!

Chen Xuan's pupils suddenly contracted to pinprick size, and his back was instantly soaked with cold sweat.

Danger!

His Martial Artist instincts screamed a warning, and almost at the same instant, he released his grip, decisively abandoning his sword and leaping backward!

"Whoosh—!"

A dazzling, scorching white beam grazed his clothes, the high temperature instantly scorching his combat uniform, and a burning pain radiated from his skin.

Before he even landed, a deafening explosion came from behind him—

Boom!!!

The three-meter-thick alloy wall was melted through like tofu, forming a huge hole two meters in diameter.

Crimson molten metal dripped slowly like lava, burning wisps of smoke on the ground, and the pungent smell of scorching instantly filled the entire space.

"What the hell..."

Chen Xuan staggered to his feet, staring intently at the still red and melting metal edge, his Adam's apple bobbing with difficulty.

This level of energy weapon completely exceeded his understanding of "biological weapons"!

Amidst the swirling dust, Zhao Tianhe spat out a mouthful of blood, his blood-stained teeth grinding audibly.

"This monster... how can it be so strong?"

"The four of us together still can't take him down?!"

Su Lei's gaze lingered on PX-0's chest.

"Its heart has been transformed into a miniature reactor, with a small blue crystal providing it with an endless supply of energy."

Everyone was startled, and they all frowned and looked.

Within PX-0's mechanical chest cavity, a faint, ethereal blue light could be seen pulsating through the armor's gaps, like the breathing of some living creature.

With each flash of light, the surrounding air would subtly distort, as if even space trembled before this energy.

"What astonishing energy fluctuations."

Elder Ye's expression was solemn, "blue crystal, so that's it..."

"It seems this is Lin Xiaotian's secret to opening the space-time rift."

Its severed arm suddenly twisted and deformed, the metal bones reorganizing like a living thing, instantly transforming into a high-frequency vibrating blade. The blade was wrapped in violent blue energy and Protective Aura, and the air shrieked piercingly with the vibrations.

"Zzz— Buzz!!"

Along the trajectory of the high-frequency blade, space seemed to be torn apart, leaving a brief vacuum zone.

PX-0 stomped hard, its metal foot cracking the ground in a spiderweb pattern, and its figure shot towards the three like a cannonball!