Conan and the others were surrounded by the men in black, and the atmosphere instantly became tense. Ran Mouri launched the first attack, rushing into the enemy ranks like a black whirlwind. Her karate moves were powerful and fierce, each strike carrying a strong airflow, repelling the approaching men in black. Nightshade, on the other hand, used his agility to weave nimbly among the men in black. His attacks were swift and precise, targeting the joints and vital points of his enemies, making them unable to defend themselves.

Lin Yu swiftly activated his high-tech equipment, unleashing dazzling laser beams that streaked dangerously through the darkness. The lasers precisely struck the weapon in the black-clad man's hand, instantly melting it and rendering him incapable of fighting. Meanwhile, Ai Haibara remained hidden in a relatively safe position, closely observing the battle and providing her companions with crucial tactical alerts.

"Conan, their encirclement is showing signs of weakening. We can break through from the northeast corner!" Ai Haibara shouted.

While dodging the clubs wielded by the men in black, Conan looked in the direction Ai Haibara pointed out and indeed found a brief gap between the men in black in the northeast corner.

"Night Shadow, Lin Yu, follow me, we'll break through from the northeast corner!" Conan shouted, and at the same time, he rushed in that direction.

Nightshade and Lin Yu immediately understood and followed closely behind Conan. Conan skillfully dodged the attacks from the men in black, using his agility to seize the opportunity and deliver a powerful kick to clear the way for those blocking his path. Nightshade and Lin Yu provided cover on both sides, repelling any enemies who tried to stop him.

The three successfully broke through the encirclement and rushed into the stronghold. However, the passages inside the stronghold were intricate and complex, resembling a giant maze. They moved quickly through the passages, with the sounds of men in black chasing them coming from behind.

"This can't go on. We need to find the location of the stolen items as soon as possible," Conan said, silently considering a solution.

Just then, Lin Yu noticed some strange symbols and markings on the wall. "Conan, could these symbols be clues to guide us?"

Conan carefully examined the symbols and found that they resembled certain patterns from the family tradition mentioned by the ancient family patriarch. "It's very likely that we should follow these symbols."

They proceeded in the direction indicated by the symbols, the passage growing narrower and the atmosphere increasingly eerie. Suddenly, a massive stone gate appeared ahead, its surface covered with mysterious runes.

"Looks like we've found the right place, but how do we open this stone door?" Ran Mouri looked at the stone door with a puzzled expression.

Conan carefully examined the runes on the stone door again, trying to find clues to open it. After some research, he discovered that the arrangement of the runes seemed to be related to an ancient code.

“I need some time to crack this code. You guys help me hold off the enemy,” Conan said, then began to concentrate on deciphering the runes.

Ran Mouri, Nightshade, and Lin Yu quickly set up a defensive line around the stone gate, waiting for the men in black to arrive. Not long after, the men in black caught up.

Upon seeing Conan and the others guarding the stone gate, the men in black immediately launched an attack. Ran Mouri was the first to charge, engaging in fierce combat with the men in black. Her punches and kicks rained down on them like a storm, each attack accompanied by a muffled groan. Nightshade, on the other hand, skillfully employed guerrilla tactics, utilizing the narrow passage to launch surprise attacks from the sides and swiftly dodge, making them difficult for the men in black to anticipate. Lin Yu, meanwhile, used high-tech equipment to continuously fire various jamming flares, disrupting the men in black's offensive rhythm.

In the heat of battle, Conan finally cracked the code to the stone door. The door slowly opened, releasing an ancient, stale atmosphere. Behind it was a huge room, in the center of which stood a magnificent stone platform, upon which were neatly arranged the stolen items.

"We've finally found it!" Conan exclaimed excitedly.

However, just as they were about to reach for the items, a sinister laugh suddenly echoed from inside the room. A figure slowly emerged from the shadows; this person was tall, dressed in a long black robe, and wore a hood, obscuring their face.

“You think you can get these items so easily? You’re too naive!” the mysterious man said.

"Who are you? Why did you steal these items in an attempt to awaken evil forces?" Conan questioned.

The mysterious man sneered: "Who I am is not important. What is important is that I will use this power to change the world and establish an order of my own."

"Your idea is absolutely insane! This force will bring disaster to the world, and we will not let you succeed!" Ran Mouri said angrily.

The mysterious man ignored Ran Mouri. With a wave of his hand, numerous hidden compartments suddenly popped up on the walls of the room, from which emerged a group of mechanical puppets. These puppets were enormous, made entirely of metal, and exuded a chilling aura.

“These puppets are made of special materials, and ordinary attacks are ineffective against them,” the mysterious man said smugly.

Conan looked at the mechanical puppets and quickly considered a solution. He noticed that the puppets' joints seemed to be relatively weak points.

"Everyone, watch out and attack their joints!" Conan shouted, rushing towards the nearest puppet.

Conan nimbly dodged the puppet's massive arm, then, seizing the opportunity, inserted his specially made tool into the puppet's joint and twisted it forcefully. The puppet's arm immediately lost control and hung limply at its sides.

Seeing this, Ran Mouri, Nightshade, and Lin Yu all followed Conan's method and attacked the puppet's joints. After a fierce battle, they finally succeeded in destroying most of the puppet.

The mysterious man's expression turned extremely grim upon seeing the puppet destroyed. He decided to take matters into his own hands, and with a wave of his hands, a powerful surge of dark energy swept towards Conan and the others.

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