What puzzled Cheng Xiaofan even more was how prehistoric flame birds from Earth could appear inside this cave.
Were the young man and woman lying in the crystal coffin prehistoric humans from Earth?
If those two were indeed prehistoric humans from Earth, then it was obvious these flame birds were specially created to protect them.
Just as Cheng Xiaofan was about to probe further into the cave with his dragon-eye vision, Wu Shengnan spoke.
She instructed the two SWAT officers beside her, "You two go up and open the cave entrance. Let Mr. Cheng go in and investigate!"
"Hold on!"
Cheng Xiaofan shouted sternly, "There are over a dozen flame birds guarding the cave entrance. You going up there is simply seeking death!"
Wu Shengnan and the SWAT officers were stunned.
The cave entrance hadn't even been opened yet, so how could he possibly know that there were over a dozen flame birds guarding it?
Wu Shengnan's mind raced. This guy could diagnose illnesses just by listening to someone's voice. Could his eyes somehow infer the situation inside the cave just by the color of the weeds at the entrance?
While everyone was still frozen in disbelief, Cheng Xiaofan leaped forward, performed an aerial flip, and landed more than ten meters away from the cave entrance.
With a casual wave of his hand, a demon bone blade appeared in his grasp.
*Zing!*
The blade was unsheathed!
Cheng Xiaofan thrust his hand forward.
"Open!"
With his thunderous roar, the ground, rocks, and vegetation flew everywhere. When the dust settled, the cave entrance was finally visible to everyone.
As for the heavy stone door, it had been reduced to dust.
Inside the cave, over a dozen flame birds lay with their heads severed, immersed in blood.
The fiery aura surrounding these ferocious-looking birds had long since extinguished!
Everyone swarmed forward, and upon seeing the scene before them, they were all dumbfounded.
Cheng Xiaofan's movements were too fast. From beginning to end, no one present saw him use a blade; they only saw him wave his hand, and the cave entrance opened.
What they found terrifying was that there were indeed over a dozen flame birds guarding the entrance.
However, they were killed in a single wave of his hand.
Everyone present were cultivators, and they couldn't comprehend what kind of technique Cheng Xiaofan had used.
Awesome!
Too terrifying!
Just then, a SWAT officer reached out to pick up a flame bird. Cheng Xiaofan immediately shouted, "Stop! You can't touch that bird!"
"The blood on these flame birds contains a potent poison. If your hand touches the blood, you will be corroded by the poison, and your flesh and bones will melt into a puddle of water!"
The SWAT officer's face turned pale with fright.
Immediately after, Cheng Xiaofan flipped his right hand, and a red light erupted from the demon bone blade.
The corpses of the flame birds vanished instantly.
Cheng Xiaofan concealed the demon bone blade within his right sleeve.
No one had seen the blade.
Suddenly, they noticed Cheng Xiaofan raise his hand slightly, and the flame bird corpses on the ground disappeared, leaving them utterly bewildered again.
This guy was too powerful!
With a wave of his hand, how did those flame birds disappear?
At this moment!
Cheng Xiaofan strode forward with immense speed, entering the cave.
Wu Shengnan led the SWAT officers, turning on their flashlights and holding their guns, following closely behind.
Cheng Xiaofan said without looking back, "Miss Wu, do not follow too closely behind me. Maintain a distance of more than a zhang."
"There are still many flame birds inside. When they attack, you won't be able to dodge in time."
Wu Shengnan listened and dared not be careless.
She immediately instructed the SWAT officers beside her, "Fall back, retreat quickly!"
The SWAT officers promptly retreated.
"Mr. Cheng, it's very dark ahead. I'll give you a flashlight!" Wu Shengnan was completely convinced by Cheng Xiaofan, even changing her form of address to "Mr."
Cheng Xiaofan waved his hand and said, "I can see. I don't need a flashlight!"
Wu Shengnan was stunned again.
It was pitch black ahead, and he could see?
What kind of eyes did this guy have!
The cave sloped steeply downwards, leading underground.
The deeper they went, the steeper the path became, with some sections being nearly vertical.
For an ordinary person, being attacked by flame birds here would mean certain death with no escape.
What surprised Cheng Xiaofan was that deep within the cave, wisps of spiritual energy permeated the air, flowing like mist in the darkness.
*Boom!*
A large swarm of flame birds flew out from the depths of the cave.
The appearance of these flame birds caused countless flashes of firelight to illuminate the cave.
"Seeking death!"
Cheng Xiaofan roared, and the demon bone blade from his right sleeve instantly appeared in his hand.
Before the flame birds could even reach him, Cheng Xiaofan waved his hand, sending a wave of black killing intent surging towards them!
"Ah—"
The flame birds emitted human-like screams from their beaks.
The sounds were chilling and made one's scalp tingle.
The flame birds fell to the ground one after another.
Cheng Xiaofan pushed his hand forward again, and the flame bird corpses on the ground vanished instantly.
Wu Shengnan and the SWAT officers following behind were all shocked.
They finally understood why Zhang Heng, the head of the Martial World Affairs Bureau headquarters, had specifically recommended Cheng Xiaofan to Jade Tablet Mountain.
This guy was unimaginably powerful!
The last time the special forces entered the cave, over thirty people had died, leaving a psychological shadow on these SWAT officers.
Cheng Xiaofan's appearance this time suddenly boosted their morale.
*Boom!*
Just as everyone felt confident, two colossal beings charged out from the depths of the cave.
These two colossal beings resembled lions, with sleek, glossy black fur. Their eyes were like lanterns, emitting a fiery red glow, and their mouths revealed a pair of bone-white fangs.
They stood and walked like humans.
With every step they took, the cave shook violently.
"Roar—"
The colossal beings were clearly enraged by the intruders and let out deafening, thunderous roars.
They recognized Cheng Xiaofan as the most formidable opponent present.
As for the people behind Cheng Xiaofan, they were no match.
To eliminate these humans, they had to first eliminate this opponent in front.
The two colossal beings let out another strange cry and lunged at Cheng Xiaofan.
*Swish!*
Cheng Xiaofan dared not be careless and immediately slashed with his demon bone blade.
The two ferocious monsters, which had just pounced before Cheng Xiaofan, landed with a thud, their heads rolling off their necks.
But!
To everyone's surprise, as the monsters' corpses fell to the ground, their heads rolled rapidly and reattached themselves to their necks.
The two monsters leaped up and stood again.
"Gah—gah—"
The two monsters let out eerie laughter simultaneously.
They seemed to be mocking Cheng Xiaofan, implying that while he could defeat the flame birds, he wouldn't be able to kill them.
Cheng Xiaofan understood the meaning behind their strange laughter.
These two monsters were filled with demonic energy. In terms of intelligence, they were not much inferior to humans.
"Roar—"
The two monsters leaped up, performing a series of somersaults in the air, like two black lightning bolts, attacking Cheng Xiaofan again from the left and right.