One Piece: The Straw Hat Pirates' Max-Level Swordsman

These ghosts were different from the ones he had encountered before. Their bodies were illusory, but their attack power was not to be underestimated. Luffy attacked the ghosts with his rubber fists, but his fists went straight through their bodies and could not cause any substantial damage.

"Everyone be careful, these ghosts are not easy to deal with!" Zoro shouted. Brook stepped forward and said, "Let me try, my soul power should have a restraining effect on them." Brook played the sound of the soul, and powerful soul power surged from the strings. Under the influence of the music, the ghosts' movements became slow, and their bodies began to gradually dissipate.

Nami observed the surroundings and found that the ghosts became clearer when they approached the crystal ball. She thought of a solution: "We can lead the crystal ball to the ghosts, and then use Brook's music to destroy them all!"

Everyone followed Nami's plan. Luffy grabbed the crystal ball with his rubber arm and brought it to the ghosts. Brook increased the intensity of the soul sound, and the ghosts were eliminated one after another under the dual effects of the crystal ball and the music.

They brought the crystal ball back to the gate of the ruins and put it into the groove on the door. The gate slowly opened, and a dazzling light emanated from inside. Everyone walked into the ruins and found a huge magic circle inside, with a treasure chest in the center of the magic circle.

Luffy ran to the treasure chest excitedly, opened it, and found a sword inlaid with gems. The sword exuded powerful energy fluctuations, and some ancient words were engraved on the hilt.

"This sword looks very powerful, maybe it will be helpful to our future adventures." Luffy said. Just as they were about to leave the ruins, they suddenly heard a loud roar coming from outside.

They ran out of the ruins and saw a huge stone monster walking towards them. The monster's body was made of hard stone, and every step it took made the ground shake.

"Another big guy, let's go!" Luffy rushed towards the giant beast without fear. He wrapped his rubber arms around the giant beast's legs and pulled hard, trying to knock the giant beast down. But the giant beast's body was too heavy, and Luffy's attack did not have much effect.

Zoro jumped onto the giant beast's back and slashed at its head with his sword: "Three sword styles? Secret technique? One big? Three thousand? The great world!" His sword left several deep marks on the giant beast's head, but the giant beast just shook its head and continued to move towards them.

Sanji used the Devil's Wind Kick to kick out flames in the air: "Devil's Wind Kick? Hell's Flame!" His attack caused some cracks to appear on the surface of the giant beast's body, but it quickly returned to its original state.

Nami used the weather stick to summon a rainstorm, trying to use the rain to wash away the stones on the giant beast and weaken its power. Usopp took out a special "boulder-destroying bomb" and fired it at the giant beast. The bomb exploded on the giant beast's body, blowing off some stone fragments.

Chopper transforms into a giant form and hits the monster with his body. Robin uses the power of the Hana-Hana Fruit to grow arms around the monster, trying to stop it. Franky attacks the monster's eyes with laser beams, and Brook uses the sound of the soul to interfere with the monster's actions.

In the fierce battle, they found that the monster's weakness was a red gem in its chest. As long as the gem was destroyed, the monster could be defeated.

Luffy saw the right moment and used his rubber arm to launch himself into the giant beast's chest, then punched the red gem with all his strength: "Rubber? Great Ape King Spear? Crushing Star!" The punch hit the gem hard, and the gem shattered instantly. The giant beast let out a huge roar, then fell down with a bang, turning into a pile of rubble.

They continued to move towards the second ruins. On the way, they encountered a wide river. The water of the river was dark green, exuded a pungent smell, and the current was fast, which seemed difficult to cross.

"How can we get across?" Chopper looked at the river with a worried look on his face. Franky thought for a while and said, "I can use the materials on the boat to make a simple raft, which should be able to cross the river."

So Franky and Usopp started to work on making a raft. In the process of making the raft, they were attacked by some river monsters. These monsters were similar to crocodiles, but their bodies were larger and their teeth were as sharp as knives.

Luffy and the others fought the monster again. Luffy used his rubber arm to throw the approaching monster away: "Rubber? Boomerang!" Zoro cut off the monster's teeth with a knife: "Three Swords Style? Tiger Hunting!" Sanji used the Devil's Wind Kick to kick the monster back into the river: "Devil's Wind Kick? Level 1 Minced Meat!"

After some efforts, they finally succeeded in making a raft and crossed the river. Soon after, they found the second ruins. The ruins were a huge temple with an ancient and mysterious architectural style, and the walls were covered with murals of various mythological stories.

The door of the temple was open, but there was a dark atmosphere inside. They walked into the temple carefully, and there were many huge statues inside. These statues had different shapes, some holding weapons, and some with their hands clasped together, as if guarding something.

Suddenly, the eyes of the statues lit up, they came alive, and attacked Luffy and others. The power of these statues was very strong, and their attacks came like a storm.

Luffy used his rubber arm to block the attack of the statue: "Rubber? Shield!" Zoro, Sanji and others also used their special skills to fight with the statue. During the battle, they found that the statue's attacks seemed to have a certain pattern, and they would attack in a certain order.

"Everyone, pay attention to the attack sequence of the statues and find their flaws!" Robin shouted. After some observation, they found the pattern of the statues' attacks. Luffy and others avoided the statues' attacks according to the pattern and took the opportunity to launch a counterattack.

Luffy grabs a statue with his rubber arm and throws it towards the other statues, causing a collision between the statues. Zoro cuts off the statue's arm with his sword, and Sanji smashes the statue's head with his Devil's Kick.

Nami summoned lightning with the weather stick and struck the statue. Usopp took out a special "statue-destroying bomb" and fired it at the statue. The bomb exploded on the statue and shattered it.

Chopper transforms into a fighting form and attacks the statue with his antlers and fists. Robin uses the power of the Hana-Hana-no-fruit to grow arms inside the statue, destroying its structure. Franky attacks the statue's vital parts with laser beams, while Brook uses the sound of the soul to interfere with the statue's movements.

With everyone's joint efforts, they successfully defeated the statue and continued to go deeper into the temple. In the deepest part of the temple, they found a huge crystal column. The crystal column was engraved with runes, and a powerful force was sealed inside.

As they were studying the crystal column, a dark force surged out of the crystal column, forming a huge dark vortex. In the dark vortex, a dark knight appeared. The dark knight was covered in black armor, holding a black spear, and exuding a strong dark aura.