As we promised earlier, we'll be doing a series of individual articles on the three ancient weapons from Eiichiro Oda's One Piece series. In these individual articles, we'll be introducing each of the ancient weapons in more detail, revealing everything we know about each one. Our main article only revealed the basic details about the three ancient weapons and their powers and abilities, but in this series of articles, we'll tell you everything we know about these weapons, as well as everything we know.

In this article, we will introduce you to the Ancient Weapon Pluton, the formidable ship and the only vehicle currently known among the three Ancient Weapons of One Piece.

What is the ancient weapon Pluto?

Although Pluto has not yet physically appeared in history, it has been described as an ancient vessel capable of causing massive damage. It was built on Water 7 during the Void Century, and the shipwrights there kept the plans safe as a precaution. In the event that Pluto fell into the wrong hands, fortunately, the ship would have been lost to history before that date. This would have allowed this to happen.

The plans were passed down through generations, and ten years before the main story, they fell into the hands of the fish-man carpenter, Tom, of Tom's Workers. At this point, Spandam sought them out to acquire the plans so they could use Pluto to end the Great Age of Pirates.

Tom refused the request and soon after handed them over to his apprentice Iceburg, who passed them on to his other apprentice, Cutty Flam, aka Franky, five years later to better hide them. When Franky was captured by the World Government, he kept the plans hidden within his own body until he realized that Nico Robin, the only living person capable of reading the Poneglyphs and reviving the Ancient Weapons, had no intention of doing so or using that power to destroy the world, but later burned the plans.

What are the powers of the Ancient Weapon Pluto?

Its power was as dangerous as that of other weapons like Uranus and Poseidon, though the exact details of their capabilities remain unknown. Pluto is said to be capable of destroying entire islands. Whoever had the weapon under their control had the potential to conquer the world, and in the wrong hands, it would be extremely dangerous. Likewise, Pluto also had the ability to wreak such havoc on the world.

Furthermore, since the plans persisted even after the ship's construction, anyone possessing the ship's plans would have the ability to build a fleet of ships with the same destructive capabilities as Pluto. The plans had been kept as a failsafe measure to revive Pluto should the world need it to combat weapons, including the original battleship itself. At this point, however, the plans that were used to create it are now destroyed while Pluto itself remains dormant.

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Where is the ancient weapon Pluto?

While the details are unknown, it is known that Pluto is located somewhere in Wano Country, and that this is what the Alabasta Poneglyph indicated. It is supposed to be a large warship. Not much else is known about it. When they first saw the plans, Franky, Iceburg, and then Kaku and Rob Lucci seemed shocked, with Franky and Iceburg wondering how a ship like Pluto could be built in the first place.

What happened to the ancient weapon Pluto?

Pluto was designed and built on Water 7 during the Void Century and became inactive after the war. In response to the threat posed by Pluto, the World Government used the existence of Pluto, Poseidon, and Uranus as the primary reason to ban Poneglyph research. It is unknown what became of Pluto after the war, but it is believed to be hidden somewhere in Alabasta, and the poneglyph indicating its location is hidden in the kingdom's royal tomb.

Unlike Poseidon, whose ability was passed down through the Ryugu Kingdom's royal family lineage, Pluto was considered an object, and the only way for a second to appear was through reconstruction. The weapon's plans had been kept hidden on Water 7. They had been passed down through a line of carpenters for centuries.

They eventually fell into the hands of the legendary carpenter Tom. The carpenters' duty was to guard the plans and prevent them from falling into the wrong hands. Furthermore, it is assumed that they would be used to build a second Pluto if the first weapon were reactivated. In Alabasta, Crocodile sought to gain control of this weapon so that he could defeat the World Government after taking control of the Kingdom of Alabasta.

The Pluto Weapon was Crocodile's greatest goal in making Alabasta a military state. The location of the Pluto Weapon is said to be somewhere in Alabasta, and the poneglyph marking this location is also found in Alabasta, inside the Tomb of the Kings. The poneglyph that spoke of the weapon was discovered by Nico Robin, who lied to Crocodile about what he had read, but Crocodile sees through Robin's deception and stabs her, after judging King Cobra's stunned reaction to her mention of the Pluto Weapon.

Cobra, to prevent Crocodile from discovering the location, decides to activate a device that destroys the Poneglyph Chamber. After the fight against the Sea Warrior, Luffy gets Cobra and Nico Robin out of there, and the location of the Poneglyph is buried. When the Straw Hat Pirates arrive on Water 7, it is revealed that the plans for the weapon have been kept on Water 7 the entire time.

These plans had been passed down through a line of incredible shipwrights for centuries. Sooner or later, they fell into the hands of Tom, the legendary shipwright. It was the shipwrights' duty to protect the plans and prevent them from falling into the wrong hands. Furthermore, they would likely use the plans to build a second Pluton weapon if the first one was ever revived.

There, CP-9 attempted to steal them from Iceburg, Tom's apprentice who had inherited the plans. However, they later discovered that Cutty Flam, another of Tom's apprentices, had them in his possession the entire time. They captured Nico Robin and Cutty Flam, who now calls himself Franky to hide his identity, in an attempt to acquire the keys to awaken the Pluto weapon from the two of them.

Much later, in Enies Lobby, Franky decides to destroy the plans for the weapon once and for all after seeing the Straw Hats declare war on the World Government. Franky realized that Robin didn't want to reanimate the weapon. Franky destroyed the plans by burning them to ensure that Spandam never reactivates the weapon.

After the raid on Onigashima, Robin had a conversation with Kozuki Sukiyaki, in which he commented that the poneglyph located in the tomb of the kings of the Alabasta Kingdom indicated that Pluto was hidden somewhere in Wano Country. Sukiyaki himself stated that this information was entirely true.

After this confirmation, Sukiyaki led Nico Robin and Law through a secret tunnel that led to an underground chamber located at the foot of Mount Fuji, where the Road Poneglyph that Kaidou possessed was located. Sukiyaki stated that the Pluto was located just below the said chamber and that to free it, the walls surrounding Wano Country had to be destroyed.