The genius who counterattacked the mainland

Xu Tiancai and his companions, armed with their mission and the crystal ball, embarked on a new journey filled with uncertainty. Soon after leaving the mysterious valley, they arrived at a vast swamp. The swamp was filled with a strange mist and a rancid odor. The ground beneath their feet was soft and muddy, and every step felt like sinking into a bottomless abyss.

"Everyone be careful, don't get separated." Xu Tiancai vigilantly reminded his teammates. The magic wand in his hand glowed slightly, ready to deal with possible dangers at any time.

Su Yao followed closely behind Xu Tiancai, weapon tightly gripped, eyes scanning the surroundings. Alice used magic to sense the surrounding environment, trying to detect potential threats in advance. Lin carefully watched the road under her feet, trying not to accidentally fall into the depths of the swamp.

They were struggling to move forward in the swamp when suddenly several huge tentacles stretched out from the swamp and attacked them. These tentacles were wet and covered with suckers, looking very disgusting.

"Be careful!" Xu Tiancai shouted, and quickly cast a fire spell, trying to burn the tentacles. The flames instantly enveloped the tentacles, but the tentacles seemed unfazed by the fire and continued to dance wildly.

Seeing this, Su Yao rushed forward without hesitation, waving her weapon and slashing at the tentacles. After the tentacles were chopped, dark green liquid flowed out, emitting an even more pungent smell.

Lin cast magic on the side to provide support for Su Yao. She cast an earth magic to make the swampland harder so that they could move better. Alice continued to cast magic to attack the roots of the tentacles, trying to find the tentacles' weaknesses.

After a fierce battle, they finally succeeded in repelling the tentacles. However, before they could catch their breath, they discovered a huge whirlpool appeared in the swamp ahead, spinning continuously as if to swallow everything in.

"What should we do? How do we get through?" Su Yao looked at the whirlpool and asked anxiously.

Xu Tiancai observed the surroundings and said, "We can't go directly over the whirlpool. That's too dangerous. Let's see if we can go around it."

They walked carefully along the edge of the swamp, trying to find a way to bypass the whirlpool. However, the edge of the swamp was also full of dangers, and from time to time some strange creatures emerged from the mire and attacked them.

During their detour, they encountered a creature that looked like a crocodile, but its body was much larger than an ordinary crocodile and covered with a layer of hard scales. This creature was very ferocious and opened its bloody mouth and pounced on them as soon as it saw them.

Xu Tiancai and his companions immediately launched a counterattack. Xu Tiancai cast an ice spell, freezing part of the crocodile's body and slowing its movements. Su Yao seized the opportunity and rushed forward, attacking the crocodile's eyes and mouth, among other vulnerable areas. Lin used earth magic to create traps under the crocodile's feet, restricting its movement. Alice continued to cast spells against the crocodile's body, attempting to break through its scales.

After a hard fight, they finally succeeded in killing the crocodile creature. At this time, they also finally found a way around the whirlpool. They walked carefully along this narrow path and finally left the swamp.

After leaving the swamp, they came to an ancient ruin that looked like it had been abandoned for a long time, with moss and cracks covering the walls, and a closed door covered with strange symbols and patterns.

"This relic looks very unusual. There may be some secrets hidden in it." Xu Tiancai said.

They walked to the front door and carefully observed the symbols and patterns on it. Xu Tiancai discovered that these symbols and patterns seemed to be ancient magical runes. He tried to use his magic power to sense these runes, hoping to find a way to open the door.

After some effort, the runes on the gate began to flicker, a low sound was emitted, and then it slowly opened. A stale smell filled the air, and everyone walked into the ruins cautiously.

The interior of the ruins was dark and silent, with torches on the walls flickering faintly, illuminating the path ahead. They walked along the corridor, which was flanked by rooms filled with various strange objects and instruments. Some looked like magical props, while others resembled some unknown technological product.

In one room, they discovered a massive mural depicting a fierce battle. On one side were a group of men in black robes, while on the other were warriors with powerful magical powers. The mural was so vivid that it made one feel the intensity of the conflict.

"This mural may be related to the history of this world." Xu Tiancai said. He carefully observed the details on the mural, trying to find some useful clues.

As they were absorbed in studying the murals, they suddenly heard footsteps from deep within the ruins. As the footsteps drew closer, everyone immediately became alert and prepared for battle.

A moment later, a figure appeared before them. It was a man in a black robe, with a mask on his face, making it impossible to see his true face. In his hand was a magic wand, which was gleaming with a strange light.

"Who are you? Why are you here?" asked the man in black robe coldly.

"We are people from another world, and we came here to complete a mission." Xu Tiancai replied.

"Mission? Humph, do you think you can save the world? Too naive." The man in black robe said with a sneer. He waved the magic wand in his hand and launched an attack on Xu Tiancai and others.

Xu Tiancai and his companions immediately launched a counterattack, unleashing a variety of magic and skills to engage in a fierce battle with the black-robed man. The black-robed man's magic was extremely powerful, and he unleashed a variety of dark magic upon them. Undeterred, Xu Tiancai and his companions worked together, utilizing their learned magic and skills to engage in a desperate struggle with the black-robed man.

In the fierce battle, Xu Tiancai discovered that the magic of the black-robed man seemed to be related to the dark power they had encountered before, so he decided to take a risk and use the power of the crystal ball to fight against the black-robed man.

Xu Tiancai concentrated his mind and poured his magic power into the crystal ball. The crystal ball emitted a dazzling light, which contained a powerful force and shot towards the man in black robe.

The black-robed man saw the light from the crystal ball and a look of horror appeared on his face. He tried to dodge the attack of the light, but it was too late. The light hit the black-robed man, and he screamed and fell to the ground.

They took the opportunity to move forward, hoping to uncover the true identity of the man in black robes. When they removed the mask, they discovered that he was a stranger they had never seen before. This stranger's face was filled with pain and despair, as if he too had a story to tell.

"Why is he here? What is his relationship with this relic and the dark power?" Su Yao asked doubtfully.

Xu Tiancai shook his head. He had no idea where this stranger came from. They continued to explore the ruins, hoping to find more clues. Deep within the ruins, they discovered a secret chamber. Inside was an ancient book and some mysterious magical items.

Xu Tiancai picked up the book and found that the text on it was a language he had never seen before, but strangely, he could understand its meaning. This book recorded the origin and development of the dark forces in this world, as well as some methods to fight against it.

Xu Tiancai was overjoyed. He carefully put the book away, ready to take it back and study it slowly. They also picked up the mysterious magic items and found that they all contained powerful powers. If used properly, they would be of great help to them.

They left the ruins, carrying their gains. They continued to explore this world, searching for a way to return to their own and completely eliminate the forces of darkness. They knew many challenges and difficulties lay ahead, but they were filled with hope and courage, convinced that they could complete their mission.