Chapter 498: The Mystery of the Ghost Ship, the Time Island, and the Legendary Voyage of the Underse

Sanji discovered that ghosts seemed to react to salt, so he took out salt from the ship's reserves and sprinkled it on the ghosts. After the ghosts came into contact with the salt, they screamed in pain and their bodies gradually dissipated. So everyone began to use salt as a weapon to fight the ghosts.

In the captain's room of the ghost ship, they found a powerful ghost captain. The ghost captain wore a black robe, a tricorn hat, and held a sword emitting cold light in his hand. He looked at Luffy and others and laughed in a low voice: "You little devils, you dare to board my ship, prepare to become my collection!"

The ghost captain launched a powerful attack. When he swung his sword, a powerful ghost energy attacked Luffy and others. Luffy and others quickly dodged. They knew that this ghost captain was not easy to deal with. They began to look for the ghost captain's weakness. In the battle with the ghost captain, they found that the ghost captain's sword seemed to be the source of his power.

Luffy came up with a plan. He asked Zoro and Sanji to attract the attention of the Ghost Captain, while he used his rubber ability to quietly approach the Ghost Captain's sword. When Luffy approached the sword, the Ghost Captain noticed his intention and immediately attacked. But Luffy's friends arrived in time and blocked the attack for him. Luffy took the opportunity to grab the sword and pulled it hard, taking it from the Ghost Captain.

Without the sword, the ghost captain's strength was greatly reduced, and his body began to become blurred. Luffy and others took the opportunity to launch an attack, using salt and various skills to attack the ghost captain. In the end, the ghost captain was completely destroyed, and the ghost ship returned to peace.

In the cabin of the ghost ship, they found some precious treasures and an old logbook. The logbook recorded some unknown areas and hidden dangers in the mysterious sea. According to the guidance of the logbook, they sailed towards a new goal.

On the next journey, they encountered another mysterious island. This island was covered by a mysterious light curtain, and the situation inside could not be seen from the outside. When they approached the island, the light curtain suddenly opened and sucked their ship in.

On the island, they found that the time here seemed different from the outside world. The creatures on the island moved very fast, and the growth and withering of flowers, plants and trees were also completed in an instant. Luffy and others felt that their bodies were also affected by time, and their movements became slow.

They met a time guardian on the island, who told them that the island was a time-restricted area and they had accidentally entered it. If they could not find a way to leave, they would be trapped in this chaotic time world forever.

Luffy and his friends began to look for a way to leave the island. They explored the island and found some time-related devices and puzzles. These puzzles require them to understand the nature of time to solve. In the process, they encountered various dangers brought by time confusion, such as the sudden appearance of time cracks, which would teleport people to different points in time.

Zoro was accidentally transported to the past, where he saw the island's former prosperity and disaster. He encountered some difficulties in the past world, but with his wisdom and swordsmanship, he successfully found a way to return to the present. Sanji was transported to the future, where he saw the serious consequences of time confusion on the world. He brought back some key information from the future to help everyone solve the mystery.

After everyone's joint efforts, they finally found a way to leave the time island. At the moment of leaving, they had a deeper understanding of time. They continued to sail, heading towards the unknown sea with the expectation of new adventures.

During one of their voyages, they encountered a mysterious energy wave. This energy wave seemed to come from deep under the sea, causing huge waves and storms. Luffy and his friends decided to dive down to see where the energy wave came from.

They took the submarine modified by Franky and slowly dived down. As the depth increased, the surrounding water pressure became greater and greater, and the light became dimmer and dimmer. In the deep sea, they saw some strange creatures with glowing organs and huge bodies. They swam around the submarine, as if observing these uninvited guests.

As they approached the source of the energy fluctuations, they discovered a huge underwater city. The city was very well preserved, with a unique architectural style, a huge crystal dome and a complex pipeline system. There seemed to be energy flowing in the city, but no residents were seen.

They entered the city and began to explore. In the central square of the city, they found a huge energy core. The energy core emitted a strong light, which caused the energy fluctuations. But this energy core seemed to be in an unstable state and could explode at any time. If it exploded, it would cause a huge underwater disaster.

Luffy and his friends decided to find a way to stabilize the energy core. They searched the city for a way to control the energy core and found some ancient consoles and operating manuals. However, the words and symbols on the operating manuals were unfamiliar to them, so Robin and Ling Tian began to work hard to decipher the information.

During the interpretation, they encountered some mechanical guards guarding the city. These mechanical guards attacked them. They were well-equipped and had great attack power. Luffy and his companions fought fiercely with the mechanical guards. Franky was amazed by the design of the mechanical guards during the battle. He used the opportunity of the battle to study the structure of these mechanical guards, hoping to find their weaknesses.

After a hard fight, they successfully defeated the mechanical guard. Robin and Ling Tian also interpreted the contents of the operation manual. They began to operate the console according to the instructions in the manual, trying to stabilize the energy core. During the operation, it is necessary to precisely control the input and output of energy. Any slight mistake may cause the energy core to explode.

Luffy and others operated carefully, and everyone stared at the console nervously. After everyone's joint efforts, the energy core finally stabilized. The underwater city also returned to peace, and they avoided a huge disaster.

After leaving the underwater city, they continued to sail. During the voyage, they encountered various challenges, including mysterious sea fog, talking marine creatures, and mysterious islands with hidden treasures... Every time, Luffy and his partners relied on their courage, wisdom and firm belief to overcome difficulties and continue to move towards their dreams. Their adventure continues, and every new challenge on the sea is an opportunity for them to grow. With curiosity about the unknown and persistence in justice, they sail towards the endless distance.