Chapter 515: Journey to explore the Flower Island and resolve the mysterious crisis

Usopp took out a special "Divine Beast Restraining Bullet" and fired it at the Divine Beast. The bomb exploded on the Divine Beast, causing it to pause for a moment. Chopper transformed into a special form and used the power of his body to hit the Divine Beast. Robin used the power of the Hana-Hana Fruit to set up obstacles around the Divine Beast to restrict its movements. Franky used laser beams to attack the Divine Beast's vital parts, while Brook used the Voice of the Soul to interfere with the Divine Beast's thinking.

In the fierce battle, they discovered that the source of the beast's power was a crystal on its head. As long as the crystal was destroyed, the beast's power would be weakened.

Luffy and the others began to focus on attacking the crystal on the top of the beast's head. Luffy used his rubber arm to launch himself to the top of the beast's head, and then punched the crystal with all his strength: "Rubber? Great Ape King Spear? Broken Crystal!" This punch hit the crystal hard with great force.

The crystal cracked, the beast roared in pain, and its power began to weaken. Zoro, Sanji and others took the opportunity to launch a more fierce attack, and with everyone's concerted efforts, the beast was finally defeated.

They succeeded in getting the artifact, but they knew that the power of the artifact was too strong, and if it remained in the world, it might cause more disputes and disasters. So they decided to find a safe place to seal the artifact again.

In the process of searching for the sealed land, they encountered many challenges. Once, they encountered a group of evil pirates who knew that they had the artifact and tried to rob it. Luffy and his friends had a fierce naval battle with the pirates.

Luffy uses his rubber arms to jump between ships and attack the pirate ship. Zoro and Sanji board the pirate ship and engage in close combat with the pirates. Nami uses the weather stick to control the weather, creating strong winds and huge waves, putting the pirate ship in trouble. Usopp uses various naval weapons he invented to attack the pirate ship. Chopper, Robin, Franky and Brook are on the Thousand Sunny, protecting the ship and resisting the pirates' attacks.

After a hard battle, they finally repelled the pirates. Finally, they found a place suitable for sealing the artifact on a mysterious island. They used the natural power of the island and Robin's research on ancient sealing techniques to successfully reseal the artifact.

Luffy and his companions have completed this great mission, and they continue to sail on the sea. They know that the future adventure is still full of countless unknowns and challenges, but they are not afraid. Because they are the Straw Hat Pirates, a group of adventurers who are brave enough to move forward for their dreams and justice. They believe that as long as everyone is united, nothing can stop them from continuing to write their own legendary stories on the Grand Line.

After successfully sealing the artifact, Luffy and his companions continued to sail on the Grand Line. As the days passed, their ship was sailing on a calm sea when they suddenly heard a melodious song. The song sounded like the sound of nature, but it also carried a hint of indescribable sadness, as if it was telling an ancient and mysterious story.

"Where is this song coming from?" Luffy looked around curiously, trying to find the source of the song. As the song got closer, they saw a huge island emerging from the sea, shrouded in a layer of hazy fog, looming.

As the boat approached the island, the fog gradually dissipated, revealing the true appearance of the island. The island was covered with all kinds of exotic flowers, which bloomed extremely gorgeously and exuded a charming fragrance. However, behind this beautiful scene, there seemed to be a mysterious power hidden.

They boarded the island and walked along a path covered with flower petals. Along the way, they saw some strange creatures that looked like humans, but had transparent bodies and glowing eyes. They moved freely among the flowers, as if they were one with them.

"What kind of creatures are these? They look so strange." Chopper said in surprise. Just as they wanted to take a closer look at these creatures, a group of people in white robes suddenly emerged from all directions. These people had stern faces and their eyes revealed a sense of vigilance and hostility.

"Who are you? Why did you break into our Flower Island?" one of the men in white asked. Luffy smiled and replied, "We are the Straw Hat Pirates. We heard singing while sailing on the sea and were attracted here."

The man in white frowned and said, "This island is our holy land. Outsiders are not welcome. You'd better leave immediately." However, Luffy was not scared by their words. He said, "We just want to stay here for a while and see this beautiful island. We don't have any bad intentions."

The men in white looked at each other, as if discussing something. Finally, one of them said, "Okay, you can stay here for a while, but don't move around casually, otherwise you will bear the consequences."

After Luffy and the others thanked the man in white, they began to explore the island. They found a huge garden on the island, which was full of various rare flowers. The petals of these flowers flashed strange light, as if they contained some mysterious power.

In the center of the garden, there is an ancient fountain. The water from the fountain is colorful and emits a charming fragrance. Luffy and others approached the fountain to see what is so special about the water.

At this moment, the water in the fountain suddenly surged up, forming a huge water curtain. Some strange pictures emerged on the water curtain, showing the past of the island and some mysterious rituals.

"What is this? It looks like it's telling a story." Robin looked at the water curtain intently, trying to interpret its meaning. From the picture on the water curtain, they learned that this island was once the site of an ancient civilization, and these people in white were the descendants of this civilization. They guarded a mysterious power on the island, which was closely related to flowers and springs.

However, recently some flowers on the island have begun to wither, and the springs have gradually lost their former vitality. The people in white think this is an ominous sign, which may indicate that the island is about to face a huge crisis.

When Luffy heard this, he immediately said, "We can help you solve this problem." The man in white looked at them with some suspicion, but when he saw the determined look in Luffy and the others' eyes, he finally decided to give them a chance.

They took Luffy and the others to a mysterious cave on the island. The cave was filled with a strong floral scent, and the walls were engraved with all kinds of mysterious runes and patterns. Deep in the cave, there was a huge flower crystal. This crystal emitted a dazzling light and was the source of the power of the flowers and springs on the island.