Earth's catastrophe, crazy black crystals begin to wreak havoc

Caesar took out the ancient lock from his backpack and carefully inserted it into the keyhole. With a dull sound, the stone door slowly opened.

The four held their breath, knowing that they were about to uncover an ancient secret. As the stone door opened, an ancient and mysterious aura blew over them, and their heartbeats accelerated.

They walked into the space behind the stone door, which was a huge circular hall with a huge stone platform in the center, on which was placed an ancient box.

"This box must contain something important." Lunisa said, with a hint of excitement in her voice.

Caesar walked forward, his hand gently touching the box. "This box, it's locked."

Xing Tianba looked around, his eyes searching for any possible clues. "There must be a way to open the box here."

Hu Huan noticed some symbols on the wall of the hall, she walked over and began to study them carefully. "These symbols seem to tell us how to open this box."

The four people began to act according to the instructions of the symbols, and they found a mechanism hidden in the corner of the hall. As the mechanism was activated, the lock on the box slowly opened.

Inside the box was an ancient book and some mysterious items. Lun Lisa picked up the book carefully, her eyes quickly scanning the pages.

"This book records an ancient legend about this stone tower and the power it guards." said Lunissa, with a hint of awe in her voice.

Caesar picked up the mysterious objects and looked at them carefully. "These objects seem to have special uses."

Xing Tianba and Hu Huan also came over, and the four of them began to study these ancient objects and books, trying to uncover the secrets behind them.

As time went by, the four gradually uncovered the veil of this ancient secret. They discovered that the stone tower was actually an ancient guarding place that guarded a powerful force that could affect the balance of the entire world.

"We must protect this power and not let it fall into the wrong hands," said Renissa, her voice firm and powerful.

Caesar nodded, his eyes gleaming with determination. "We will find a way to protect this power."

Xing Tianba and Hu Huan also expressed their support, and the four decided to guard this ancient secret together to ensure that it would not be abused.

Following the decision of Lunisa, Xingtianba, Hu Huan, Caesar and others, a soft light suddenly lit up inside the stone tower, as if responding to their determination.

Inside the stone tower, as Lun Lisa, Xing Tianba, Hu Huan and Caesar made their decisions, a soft light suddenly lit up, as if ancient magic was responding to their determination. This light was like the first ray of sunlight in the morning, warm and mysterious, illuminating their way forward.

"It seems we made the right choice." Lun Lisa said softly, with determination and curiosity flashing in her eyes.

"Proof of courage, it doesn't sound simple." Xing Tianba frowned, his hand unconsciously tightened the hilt of the sword at his waist.

Hu Huan looked around nervously, his voice trembling: "Is there a ghost in this maze?"

Caesar calmly analyzed: "According to the clues in the scroll, we must pass through the maze and prove our courage. But the maze is definitely full of traps and challenges."

The four of them held the scrolls tightly in their hands and stepped into the entrance of the maze. The interior of the maze was dark and gloomy, with vines crawling on the walls and a damp and ancient atmosphere in the air. With every step they took, they could hear their own heartbeats echoing in the empty corridor.

"Be careful, there may be a trap here." Lun Lisa warned, her eyes scanning the surroundings sharply.

Suddenly, a low roar sounded from the depths of the maze, and the four people's heartbeats accelerated.

"What's that sound?" Hu Huan asked nervously, his body involuntarily moving closer to Xing Tianba.

"I don't know, but we must remain vigilant." Xing Tianba replied, his sword already unsheathed, ready to deal with any possible danger at any time.

They continued to go deeper into the maze, and every time they turned a corner, they might encounter unknown dangers. The structure of the maze was intricate and complex, as if it were a huge labyrinth trying to confuse and trap them.

"Look, there's a mark here!" Caesar said, pointing to a symbol on the wall.

"What does this mean?" asked Lunsa curiously.

"It may be a clue left by our predecessors. Let's follow it." Caesar decided.

They followed the mark and moved forward carefully. Suddenly, the ground began to shake, and a huge stone slab rose from the ground, blocking their way.

"What's going on?" Hu Huan shouted in panic.

"Calm down, we must find the mechanism." Lunisa said calmly, her eyes searching for clues on the stone slab.

After some effort, they finally found the mechanism, and the stone slab slowly lowered, revealing a way to continue forward.

"We did it!" Xing Tianba said excitedly, with a victorious smile on his face.

But they know that this is just the beginning, and there are more challenges waiting for them in the maze. They continue to move forward, and every step is full of unknowns and dangers.

Deep in the maze, a huge shadow moved slowly, its eyes flashing red in the darkness, as if it was a messenger from hell.

"What is that?" Hu Huan's voice trembled.

"Whatever it is, we must not back down," Renissa said firmly, her sword ready to meet the challenge.

The four faced the fear of the unknown, their courage was tested, but they did not give up. They knew that only by passing this maze could they prove their courage.

The challenges of the maze came one after another, each one was more difficult than the previous one. But they did not give up, their determination and courage supported them to move forward.

Finally, when they walked out of the maze, they felt an unprecedented sense of accomplishment. They proved their courage and their team spirit.

"We did it!" said Lisa excitedly, her eyes filled with tears.

"Yes, we proved our courage," Xing Tianba responded, his voice full of pride.

Four people stood at the exit of the maze, their figures looking particularly firm in the afterglow of the setting sun.

Hu Huan looked around, with a hint of uneasiness in his eyes: "Do you feel anything is wrong?"

Caesar looked up at the sky, his brows furrowed. "Hu Huan, what do you mean?"

At this moment, Hu Huan suddenly exclaimed: "I seem to feel something strange coming from the sky!"

The four of them immediately looked up at the sky and saw a black shadow approaching rapidly, like a group of giant crows, but their wings were shining with metallic luster under the setting sun.

"What is that?" asked Lunisa nervously, her hand involuntarily clenching the hilt of the sword.

"No matter what it is, we must be prepared to fight!" Xing Tianba shouted loudly, his sword already unsheathed, ready to fight.