"Wait for me here, Robin! Come with me, we need to take a closer look!" Logan's voice carried a sense of urgency.
Without wasting a second, he leaped from the high point of the flying saucer, pulling Robin along with him. They descended rapidly, like rockets streaking through the air, heading straight for the array of towering robots below.
As they landed amidst the mechanical behemoths, Logan found himself momentarily speechless. The sheer presence of these colossal machines was staggering. The robots, made of unknown materials, gave off an intimidating aura, as though an army of giants were watching them with cold, mechanical eyes.
Logan approached one of the robots, knocking on its metal exterior. The sound that reverberated was deep and solid, a clear indication that the armor was sealed tightly and intact. These robots had not been damaged.
Incredible... if these machines could be reactivated, they could rival even the Seraphim in strength. Logan's mind raced as he considered the implications.
The thought of an 800-year-old kingdom possessing such advanced technology sent chills down his spine. How had the World Government managed to defeat such a powerful civilization? Logan's mind whirled with questions.
The fact that the robot guards remained intact suggested that they had never been used. Logan couldn't help but wonder if betrayal had played a role in the downfall of the great kingdom.
From the edge of the array, Robin's voice broke the silence. "There's a book here!"
Logan turned his attention to Robin, who had found a stone book nestled among the machines. Unlike ordinary books, this one had pages made of stone—much like the material of the Poneglyphs. Robin carefully touched the surface of the stone book.
"This material... it seems to be the same as the Poneglyph," she said thoughtfully.
Logan nodded, his eyes narrowing in realization. "It must be. They probably used the same material to preserve the information for eternity. Let's see what it says."
Robin wasted no time. She took out an archaeological magnifying glass and began to carefully translate the ancient script, her fingers tracing each character as she worked. As she read, her expression shifted from curiosity to shock.
Logan waited patiently until Robin had finished reading the entire text. When she finally looked up at him, the shock on her face mirrored his own feelings.
"Logan," Robin began, her voice low and serious, "this is far more than I expected."
It turned out that these robots weren't just ordinary machines—they were part of an ancient weapon, a forgotten fourth weapon, called Terra.
The legendary ancient weapons weren't limited to three after all. In addition to Uranus, Poseidon, and Pluton, there was a fourth—Terra, the King of Man.
During the height of the Great Kingdom, these robots were built to withstand natural disasters and defend the kingdom. The man who designed them possessed technological knowledge so advanced that even Devil Fruit users couldn't stand against him. This man was known as the King of Man.
Robin continued, "The Great Kingdom was a beacon of peace. But it wasn't a naive peace. The king of that time understood that peace must be defended, even if it meant eliminating threats."
As the world stabilized and grew more peaceful, more nations pledged loyalty to the Great Kingdom. Among them were the 20 largest countries, who revered the kingdom as a holy land.
But the story didn't end there.
"Greed," Logan muttered, already piecing together what was to come. "It's always greed."
Robin nodded. "Yes. The leaders of those 20 countries became envious. They didn't just want the kingdom's technology—they wanted to control it."
In secret, the 20 nations conspired to overthrow the Great Kingdom, and they found their opportunity through betrayal. They managed to turn a high-ranking individual from the Great Kingdom against his people. This traitor held one of the Ancient Weapons—Uranus.
"The power of Uranus was unlike anything else," Robin explained. "No matter how advanced the Great Kingdom's defenses were, Uranus was an unstoppable force, capable of destroying entire islands with a single attack. It was like a nuclear weapon, only far more devastating."
But there was a catch. Each use of Uranus came with a terrible cost—the life of its wielder. The traitor, however, found a way to circumvent this price.
Robin's voice grew quieter as she reached the most unsettling part of the story. "At the time, the Op-Op Fruit was in the possession of a captain from the Alabasta Kingdom. The traitor convinced him to perform the Immortality Surgery, granting the traitor eternal life. In return, the captain gave his own life."
With eternal life and the power of Uranus at his command, the traitor unleashed destruction upon the Great Kingdom. The kingdom's ruler at the time was none other than Joy Boy, who wielded the power of the Mythical Zoan Nika Fruit. His ability allowed him to turn the entire kingdom into rubber, protecting it from most threats, including Uranus.
"But betrayal cuts deep," Robin said, her voice barely above a whisper. "The traitor was one of Joy Boy's most trusted allies. He used Seastone chains to bind Joy Boy, weakening his power. Even then, Joy Boy fought back, but it wasn't enough."
The Great Kingdom fell, but Joy Boy's final act of defiance saved part of it. A loyal confidant initiated a protection program, summoning an enormous Sea King to swallow the kingdom whole. The kingdom sank to the bottom of the sea, hidden from its enemies.
Logan's heart pounded as he processed the information. "So this... this is part of the Great Kingdom, hidden away beneath the ocean."
Robin nodded, her expression somber. "Yes, it appears so."
The revelations left them both shaken. The ancient world was far more complex and tragic than they had imagined. The robots, the betrayal, the power of Uranus—it all pointed to a history that had been deliberately erased.