The genius who counterattacked the mainland

Xu Tiancai and the others followed the mysterious figure through the dark castle. The surrounding dark forces pressed towards them like a substance, as if to devour them. With every step, they could feel the encroaching darkness, and their teammates mobilized their inner strength to resist.

The mysterious figure's staff emanated a soft glow, illuminating the path ahead. As they went deeper, they arrived at a vast hall, the walls of which were covered in ancient runes. These runes shone with eerie light, as if telling stories from long ago.

"This is one of the core areas of the castle. It was once the residence of a powerful demon god." The voice of the mysterious figure echoed in the hall with a hint of solemnity.

Suddenly, the ground began to tremble violently, and from all directions, a swarm of demonic creatures emerged. They were sturdy, their muscles bulging, black flames spewing from their mouths, and their eyes flashed blood-red. These demonic creatures wielded various weapons, some of which were huge maces, others sharp tridents, and pounced towards Xu Tiancai and his companions.

Xu Tiancai bore the brunt of the attack, merging his star power with the Phoenix's. His entire body was enveloped in a rainbow of light. With a flash of his body, he charged towards the demons like a ghost. The Key of the Galaxy in his hand transformed into a massive lightsaber, shattering several demons with each swing. The lightsaber sliced ​​through the air with a hissing sound, sending demonic limbs flying everywhere.

Not to be outdone, Agang's great axe raged with lightning. With a roar, he charged into the demon horde, swinging his axe in a gust of wind. The force of lightning coursed along the axe blade, sending convulsions through the bodies of any demon struck, causing them to collapse to the ground. He spun, sweeping his axe across, repelling a group of demons attempting a flank attack.

The magic-savvy teammates joined forces to cast a massive firestorm. Blazing flames raged through the hall, forming a massive ring of fire that trapped the demons. The flames, as if alive, lunged at the demons, burning them with their claws and fangs, causing them to scream in agony. Some demons tried to break through the ring, but the intense heat prevented them from approaching, leaving them roaring at the edge.

However, the demons seemed endless, pouring in wave after wave. During the battle, a teammate was accidentally struck by a demon's black flames, instantly letting out a cry of pain. The black flames burned through him, rapidly eroding his body. Seeing this, Xu Tiancai hurriedly channeled a stream of star power, transforming it into a silk thread that wrapped around his teammate, suppressing the black flames.

Lin also began to cast her ice spells. She formed hand seals and chanted aloud. Massive cones of ice rose from the ground and pierced the demons. Like sharp spears, the cones pierced through the demons. Some were pinned to the wall, unable to move. The ice spells, combined with the fire spells, temporarily alleviated the demonic onslaught.

The mysterious figure quietly observed from the side, gently waving the staff in his hand, and mysterious waves of power spread out. These waves seemed to affect the demons' movements, causing their attacks to become somewhat chaotic.

During the fierce battle, Xu Tiancai discovered that these demons seemed to be driven by some kind of force. He looked up at the ceiling of the hall and saw a huge black crystal ball in the darkness. Dark power surged in the crystal ball, as if conveying instructions to the demons.

"Attack that crystal ball!" Xu Tiancai shouted. His teammates, upon hearing his cry, immediately adjusted their tactics. Xu Tiancai leaped high and flew towards the crystal ball. He concentrated all his strength on the Galaxy Key, preparing to launch a powerful attack on the crystal ball.

Just as he approached the crystal ball, it suddenly unleashed a powerful dark ray. Xu Tiancai quickly dodged, but the ray grazed his body and struck the wall behind him, creating a massive hole. Steadying himself, Xu Tiancai rushed toward the crystal ball again, this time deftly dodging the attack and thrusting his lightsaber fiercely into it.

The moment the lightsaber made contact with the crystal ball, a powerful energy surge erupted. Cracks appeared on the crystal ball's surface, and dark forces leaked out from the cracks. The demons' movements became increasingly chaotic, and they began to attack each other, plunging the entire hall into chaos.

Agang seized the opportunity and led some of his teammates towards the demons, where a fierce melee ensued. Great axes, swords, and the demonic weapons clashed with each other, creating a deafening roar. Blood splattered on the walls and ground as the battle reached a fever pitch.

Lin and the other teammates who were good at magic continued to cast fire and ice spells to prevent the demons from escaping. The flames burned more and more, and the ice cones became more and more, trapping the demons tightly.

As the cracks in the crystal ball grew, the leakage of dark energy became more severe. Suddenly, the crystal ball exploded, sending a powerful wave of dark energy spreading outward. Xu Tiancai and the others were struck by the energy wave and sent flying backwards. Under the impact of the energy wave, the walls of the hall began to collapse, and the entire space was in danger of collapse.

When the dust settled, they discovered that the original hall had become a ruin, and in the center of the ruins, a downward passage appeared. The passage exuded a mysterious atmosphere, as if hiding a greater secret.

The mysterious figure walked to the entrance of the passage and said, "Inside is what we are looking for, but the danger will also be greater. You must be prepared."

Xu Tiancai stood up, dusted himself off, and said, "We've come this far, nothing can stop us."

The teammates nodded in agreement. They braced themselves and followed the mysterious figure into the passage. The passage was thick with fog, blurring their vision. They walked cautiously until suddenly, a deep roar echoed from the depths of the passage. The roar seemed to emanate from an ancient beast, carrying with it an immense majesty and terror.

As they continued deeper, they saw glowing gems inlaid on the walls of the passage. These gems emitted a faint blue light, barely illuminating the surroundings. In the light, they discovered murals carved into the walls. The murals seemed to depict an ancient war. Angels and demons battled, the sky dyed blood red, and the earth trembled.

"These murals seem to be hiding some information." Lin said softly.

Xu Tiancai observed the mural carefully and found that the angel in the mural seemed to be guarding something, and the appearance of that thing was somewhat similar to the item they were looking for.

"Maybe this holds the key to our fight against the forces of darkness," Xu Tiancai said.

As they studied the murals, the roaring grew closer. Suddenly, a massive three-headed dog burst forth from the depths of the passage. The three-headed dog was enormous, each head a terrifyingly ferocious beast, and its mouth spewed green venom. Its body was covered in hard scales, like armor, and its limbs were so powerful that every step it took shook the ground.

Xu Tiancai and the others immediately assumed combat stances. Ah Gang, brandishing his massive axe, charged at the three-headed dog. His speed was incredible, and the axe struck one of the three-headed dog's legs with immense force. One of the three-headed dog's heads opened its maw and bit at Ah Gang. Ah Gang dodged nimbly, and the axe struck the three-headed dog's leg, sending up a shower of sparks but leaving only a faint mark on its scales.

Xu Tiancai unleashed the power of the stars, countless starlights converged in his hands, forming several spears of light. He launched them at the three-headed dog, which pierced the air like lightning, piercing its body. The other two heads roared, spewing venom and flames. The venom landed on the ground with a sizzling sound, corroding the ground, while the flames rushed towards Xu Tiancai and the others.

The team cast spells, forming a shield to block the flames. Lin cast an ice spell, attempting to freeze the three-headed dog's movements. Ice chains rose from the ground and wrapped around the three-headed dog. The three-headed dog's body was partially entangled in the ice chains, but it struggled hard, and the chains broke.

During the battle, one of the three-headed dog's heads suddenly rushed towards Lin, its maw wide open, revealing sharp fangs. Fear flashed in Lin's eyes, and she quickly cast the Ice Wall spell. A thick wall of ice rose before her. The three-headed dog's head collided with the ice wall, cracking it.

Xu Tiancai saw this, his heart aching. He fused the power of the stars and the power of the phoenix to its fullest, his entire body enveloped in a dazzling rainbow of light. He charged towards the three-headed dog. As he approached, he leaped high, the Key of the Galaxy in his hand transforming into a massive, rainbow-colored lightsaber. With a roar, he thrust the lightsaber fiercely into the dog's center head.

The lightsaber collided with the three-headed dog's head, unleashing a burst of intense light. The three-headed dog roared in pain as its middle head was pierced by the lightsaber, gushing blood. But the three-headed dog didn't fall. Instead, it grew even more enraged, and its other two heads attacked Xu Tiancai frantically.

Seeing Xu Tiancai in danger, Agang rushed at the three-headed dog again. He increased the lightning power of his axe to its maximum and slashed at the three-headed dog's body. This time, the axe pierced the three-headed dog's scales and embedded itself deeply into its body. The three-headed dog, in pain, turned and pounced on Agang.

The team members seized the opportunity to launch an attack, raining down spells on the three-headed dog. Fire, icicles, wind blades, and other attacks put the three-headed dog in a difficult position. Under the combined attack, the three-headed dog began to suffer multiple wounds, and blood stained the ground red.

However, the three-headed dog did not give up its resistance. Its three heads roared simultaneously, and the dark power within it surged. Its body began to swell, and its power grew even stronger.

"Oh no, it's going crazy!" Xu Tiancai shouted.

Just as the three-headed dog was about to launch a more powerful attack, a mysterious figure intervened. With a wave of his staff, a mysterious golden rune appeared above the three-headed dog. The rune radiated a powerful force, suppressing the three-headed dog's dark power. The three-headed dog's body began to shrink, its power gradually weakening.

Xu Tiancai seized this opportunity and launched another all-out attack. He unleashed the power of the Galaxy Key to its full potential, stabbing the three-headed dog in the flesh. This time, the lightsaber successfully pierced the three-headed dog's body, and the dog let out a final roar before collapsing to the ground.

Everyone breathed a sigh of relief, but they knew that this was only the beginning of the challenges deep within the castle. They continued along the passage, not knowing what dangers awaited them.

As they went deeper into the passage, the surroundings grew more eerie. The light from the gemstones on the walls gradually dimmed, as if suppressed by some force. Suddenly, they felt the ground beneath their feet soften, as if they had sunk into a swamp.

"What's going on?" a teammate asked in panic.

Xu Tiancai tried to break free, but found the suction force under his feet getting stronger and stronger. He looked down and saw some black slime on the ground, and some strange shadows seemed to be swimming in the slime.

"Everyone be careful, this slime is weird!" Xu Tiancai shouted.

At this moment, black tentacles emerged from the mucus and began to wrap around the group. The tentacles had a smooth, sticky surface and were covered in tiny barbs.

Agang swung his giant axe at the tentacles, but the tentacles were very tough and the axe could only leave shallow marks on them. Lin cast an ice spell, trying to freeze the tentacles, but the mucus seemed to have the ability to resist the cold, and the ice spell was not very effective.

The mysterious figure's staff glowed, and he chanted a spell. Arrows of light shot out from the staff, shooting towards the tentacles. After the arrows hit the tentacles, they trembled slightly and then retracted.

"We must leave here as soon as possible." said the mysterious figure.

Xu Tiancai concentrated his mind, channeling the power of the stars into his feet, attempting to free himself from the slime. With a powerful leap, he finally emerged from the entanglement. His teammates followed suit, each one freeing themselves after some effort.