After uncovering the veil of a huge conspiracy, Conan and his friends knew that time was of the essence and they had to quickly formulate a countermeasure to stop the evil plan of that ancient secret organization.

They gathered at their secret hideout, the room filled with a tense and serious atmosphere.

“Based on the information we currently have, the core members of this ancient secret organization are scattered all over the world, and they are ready to launch their final operation,” Conan said, pointing to several marks on the map.

Lin Yu's expression was solemn: "Our strength is limited, and it is impossible for us to stop them in multiple places at the same time."

Ai Haibara thought for a moment: "We must find their key figures and core locations of operation, and concentrate our efforts to break through them."

After in-depth analysis and discussion, they finally identified their target—an ancient castle in Europe, believed to be the hideout of the organization's leader and the command center for their plan.

Ran Mouri and Kogoro Mouri also decide to join this final battle and fight for justice.

"Ran-neechan, this could be very dangerous," Conan said with some concern.

Ran Mouri answered firmly, "Conan, we've been through so much together, and we won't back down this time either."

They quickly prepared their gear and embarked on their journey to Europe.

Upon arrival at their destination, the castle appeared peaceful on the surface, but in reality, danger lurked beneath.

Conan cautiously observed the surroundings. "Everyone be careful, there are definitely many traps and guards here."

They quietly approached the castle, using Lin Yu's high-tech equipment to bypass some surveillance and alarm devices.

However, they were discovered on their way into the castle. A group of guards rushed out and engaged them in a fierce battle.

Kogoro Mouri demonstrated his excellent fighting skills, subduing the guards one by one.

"Charge in!" Conan shouted.

They overcame numerous obstacles and finally entered the castle.

The interior of the castle is like a maze, with numerous rooms and complex passageways.

"Let's split up and search for the leader's location," Conan said.

Everyone dispersed and carefully explored on their own.

Conan discovers some important documents and blueprints in a room, detailing their evil plans.

"We must stop them as soon as possible!" Conan thought to himself, quickening his pace.

At this moment, Ai Haibara encounters a high-ranking member of the organization, and the two engage in a battle of wits and courage.

During his search, Lin Yu accidentally triggered a mechanism and found himself in danger.

Fortunately, Ran Mouri arrived in time and saved his life.

Finally, Conan found the room where the leader was.

He pushed open the door, and there sat the leader, a cold smile on his face.

"Do you think you can stop me?" the leader said.

"As long as justice exists, your conspiracy will not succeed!" Conan replied without fear.

The two engaged in a fierce dialogue and psychological battle.

Just then, the other companions arrived one after another. They united and launched a final battle against the leader.

After a thrilling battle, Conan and his friends, through their wisdom, courage, and teamwork, finally defeated the leader and thwarted their plans.

"We did it!" everyone cheered.

With the destruction of the ancient secret organization, the world returned to peace and tranquility.

Conan, Lin Yu, Ai Haibara, Ran Mouri, and Kogoro Mouri have become heroes in people's hearts.

Their names will be remembered forever, their stories will become legends, inspiring people to bravely face difficulties and defend justice.

After returning to Tokyo, Conan resumed his peaceful life, but he knew that as long as evil existed, he would not hesitate to stand up for it.