Seeing that Conan and the others refused to hand over the artifact, the masked man waved his hand, and his henchmen pounced on them like wolves. Conan quickly handed the artifact to Ai Haibara for safekeeping, shouting, "Protect the artifact! We can't let it fall into the wrong hands!" Then he and his companions fought off the enemy.

Ran Mouri was the first to charge, letting out a loud shout as she charged towards the enemy with fierce karate moves. Her movements were lightning-fast, each punch and kick carrying immense force, instantly striking several men in black and sending them flying. Night Shadow, meanwhile, moved like a ghost through the enemy ranks, his attacks as swift as lightning, each strike precisely hitting the vital points of his enemies, making them impossible to defend against.

Lin Yu was not to be outdone. He quickly activated his high-tech equipment, and beams of electricity shot out from the device in his hand, darting through the enemy ranks like silver snakes. The black-clad men struck by the electricity trembled violently and collapsed to the ground in agony. However, the enemy numbers were overwhelming, and they continued to surge forward, gradually drawing Conan and his companions into a fierce battle.

While dodging enemy attacks, Conan observed the battle. He noticed the masked man remained at the rear, directing his men, seemingly waiting for the perfect moment to strike. "This guy is the key; I need to find a way to take him down first!" Conan thought to himself.

At this moment, Ai Haibara was tightly guarding the sacred artifact in a corner, fully aware of its importance. Watching her companions fight bravely ahead, she was anxious and also thinking about how to help them. She noticed some strange symbols on the walls of the stone chamber, related to what they had seen in the cave earlier. Perhaps these symbols held some kind of power that could help them turn the tide of battle.

"Conan, these symbols might be useful!" Ai Haibara shouted.

Upon hearing this, Conan glanced at the wall and a thought struck him. While fighting, he recalled his experiences in the cave, trying to find the connection between the symbols. Suddenly, a flash of inspiration struck him, and a possibility came to mind.

"Night Shadow, Lin Yu, listen to my command! We'll attack the specific symbols on the wall in a certain order!" Conan shouted.

Upon hearing this, Nightshade and Lin Yu immediately coordinated with Ran Mouri, fighting and retreating as they approached the wall. Following Conan's instructions, they attacked the symbols one by one. Each time a symbol was hit, it emitted a beam of light, which intertwined and gradually formed a mysterious pattern.

The masked man's expression changed drastically upon seeing this; he realized that Conan and the others might be trying to ruin his plans. "Stop them!" he shouted anxiously to his men.

The men in black attacked Conan and his friends even more frantically, but by this time, they had a clear objective and their teamwork became increasingly seamless. Ran Mouri, with her superior strength, held off most of the enemies' attacks, buying time for Nightshade and Lin Yu. Nightshade and Lin Yu focused on attacking the symbols, and through their efforts, the mysterious pattern gradually became complete.

The instant the design was completed, a powerful surge of energy erupted from the wall, like an invisible wave, knocking all the men in black to the ground. The masked man was also impacted and staggered back a few steps.

"What kind of power is this?" The masked man looked at Conan and the others in horror.

Conan ignored him and turned to Ai Haibara, saying, "Let's see if the artifacts react now."

Ai Haibara carefully examined the artifact and noticed that its light had become brighter and began to tremble slightly. Suddenly, the artifact emitted a dazzling light, within which some mysterious characters appeared.

"This seems to be a hint to break a certain seal," Ai Haibara said.

Conan pondered for a moment and said, "Perhaps this seal is related to the evil forces that are trying to use the artifact. We must break it as soon as possible and completely eliminate the hidden danger."

However, the masked man had no intention of giving up. While Conan and the others were focused on the artifact, he suddenly rushed towards Ai Haibara, attempting to snatch it.

"Watch out!" Conan shouted and rushed over to stop the masked man.

The masked man and Conan wrestled together. The masked man was extremely agile and seemed to possess some kind of special ability, making it difficult for Conan to break free.

Seeing this, Ran Mouri, Nightshade, and Lin Yu immediately rushed to their aid. The four of them joined forces and engaged in a thrilling battle against the masked man. Although the masked man was powerful, he gradually showed signs of defeat thanks to the combined efforts of Conan and the others.

Just as Conan was about to deliver the final blow to the masked man, the man suddenly pulled a small device from his pocket and pressed a button. The device emitted a piercing sound, and then the stone chamber began to shake violently, as if it was about to collapse.

"Oh no, he's going to destroy this place!" Lin Yu shouted.

"We don't have time, we must unravel the secret of the artifact as soon as possible!" Conan said.

Ai Haibara focused intently on deciphering the mysterious inscriptions on the artifact, and in this extremely critical moment, she finally understood their meaning.

“I understand. We need to insert the artifact into a specific position on the central stone platform of the stone chamber, and then input energy in a certain order,” Ai Haibara said.

Conan quickly took the artifact and, following Ai Haibara's instructions, inserted it into the stone platform. Then, Lin Yu, using his high-tech equipment, and Nightshade, employing his special abilities, worked with Conan to channel energy into the artifact in sequence.

After absorbing energy, the artifact emitted a brilliant light that enveloped the entire stone chamber. Under the light, the shaking of the chamber gradually stopped, and a mysterious portal appeared on the wall.

"This is the power of the seal," Conan said.

They entered through the portal and found themselves in a space filled with light, with a crystal emitting a dark aura suspended in the center.

"This crystal seems to be the root of all the conspiracies. It exudes an evil power and attempts to use the artifact to open a passage to the outside world, bringing disaster to the world," Ai Haibara analyzed.

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