Seeing the mechanical monsters rushing in, Conan quickly made a judgment: "These mechanical monsters look troublesome. Everyone be careful of their mechanical arms; their attacks may be very powerful."

Nightshade immediately drew his short sword, his sharp eyes fixed on the foremost mechanical monster, and launched the first attack. He moved with lightning speed, charging towards the monster, attempting to find an opening in its joints. However, the mechanical monster reacted swiftly, its massive mechanical arm swinging out, creating a strong gust of wind that forced Nightshade back.

Undeterred, Ran Mouri followed closely behind, charging towards the mechanical monster at incredible speed. Seizing her opportunity, she leaped high into the air and delivered a powerful spinning kick to the monster's head. With a clang, Ran's foot struck the metal casing, producing a crisp sound, but leaving only a shallow mark.

Lin Yu swiftly activated his high-tech equipment, firing several laser beams from a transmitter on his wrist, precisely aiming at the mechanical monster's eyes. Upon impact, sparks flew from the monster's eyes, and its movements were briefly slowed.

Ai Haibara quickly observed the mechanical monster's overall structure. She noticed that its energy supply device seemed to be on its back; destroying that location might render the monster immobile. "Conan, attack the energy device on their backs!" Ai Haibara shouted.

Upon hearing this, Conan immediately took out a small magnetic bomb from his backpack and threw it at a mechanical monster. The bomb accurately adhered to the mechanical monster's back, and with a loud "boom," a hole was blasted in the monster's back, billowing thick smoke. After swaying a few times, it crashed to the ground.

Seeing this, the other mechanical monsters intensified their attacks. They swung their mechanical arms, sweeping towards Conan and the others. Conan nimbly dodged the attacks while loudly directing everyone: "Spread out! Don't stay together to avoid being attacked simultaneously!"

Ran Mouri and Nightshade split up, constantly looking for opportunities to attack the mechanical monster. Ran used her agility to weave through the gaps in the mechanical arms, occasionally delivering a fatal blow to the monster; Nightshade, on the other hand, relied on her keen combat instincts to avoid the monster's attacks and thrust fiercely at its weak points.

While dodging attacks, Lin Yu used his high-tech equipment to scan the mechanical monsters, trying to find more of their weaknesses. The scan revealed that although the mechanical monsters' leg joints were sturdy, continuous attacks on the same spot could damage their structure. "Attack their leg joints! Keep attacking the same spot!" Lin Yu shouted.

The group immediately changed their attack strategy, focusing their attacks on the mechanical monsters' leg joints. Conan used his soccer dribble to launch a soccer ball, the powerful shot repeatedly striking the leg joints of one of the mechanical monsters; Ran Mouri and Yoru also launched attacks on the legs of different mechanical monsters. Under the combined attack of the group, one of the mechanical monsters' leg joints finally gave way, snapping with a "crack," causing the monster to lose its balance and fall to the ground.

However, the mechanical monsters were numerous, surging forward wave after wave. Just as Conan and the others were starting to struggle, Conan suddenly realized that the mechanical monsters seemed to be under the unified control of some kind of signal. "Lin Yu, can you interfere with their control signal?" Conan shouted.

Lin Yu quickly operated the device in his hand, beginning to scan the control signal frequency of the mechanical monsters. After some effort, he successfully located the signal frequency and, by adjusting the device, emitted interference waves. Affected by the interference waves, the mechanical monsters' movements became chaotic; they collided with each other, and their attacks became erratic.

Taking advantage of this opportunity, Conan and the others concentrated their efforts and launched a final attack on the mechanical monsters. With everyone's combined efforts, they finally defeated all the mechanical monsters.

"Phew, finally we've got these troublesome guys sorted out," Lin Yu said, wiping the sweat from his forehead.

"Don't relax. We still don't know where these mechanical monsters came from, and there may be more dangers ahead," Conan said.

The group arrived at the energy core in the center of the hall and began studying the method for sealing the power recorded on the stone tablet. The text on the tablet was ancient and obscure, and Conan, Ai Haibara, and Ran Mouri carefully deciphered it, trying to understand each step.

After much effort, they finally understood the general process of sealing. First, they needed to find the five hidden energy nodes around the energy core and inject specific energy into them; then, they needed to activate these nodes in a specific order to form an energy sealing field, thereby sealing the power of the energy core.

Just as they were about to begin searching for the energy node, footsteps suddenly came from the entrance of the hall. Conan and the others looked over warily and saw a group of men in black reappear. The leader was none other than the man they had defeated earlier, with a smug smile on his face.

"You think you can easily seal this power? You're too naive. This power belongs to us, and no one can stop us," the leader of the men in black said viciously.

It turns out that the leader of the men in black was not completely subdued in the previous battle. While Conan and the others were focused on studying the sealing method, he quietly regained his mobility and called for backup.

The men in black swarmed forward, engaging Conan and his friends in another fierce battle. This time, the men in black seemed better prepared; their attacks were more ferocious, and their coordination was more seamless.

While dodging the attacks of the men in black, Conan pondered a countermeasure. He realized that although the men in black were numerous, their movements were somewhat restricted in the relatively narrow hall. "Everyone, use the layout of the hall to maneuver around them and look for an opportunity to break through their defenses and seal the energy core," Conan shouted.

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