Few people noticed that a certain creature was appearing throughout the Kronos Kingdom and even across the islands of the Pluton Pirates.
It was a mysterious giant with the features of many dragon-like creatures.
In some carvings, the giant sat on the Throne, surrounded by the Nine-Headed Dragon, with the sun and moon shining together.
Across the Pluton Pirates' territory, "it" appeared at the port of every island and in important places such as public squares. It was even present in the Sky Arena.
Beyond that, its presence was gradually spreading, becoming ever more conspicuous throughout the Pluton Sea.
The design was unmistakable: a mysterious giant combined with the Tartarus Royal Family's Family Crest.
One glance was enough to guess that the Pluton Pirates were connected to the Kronos Kingdom.
Hades had long since laid his cards on the table. The World Government knew. The Marines knew. The Affiliated Nations knew, and so did some Great Pirates. But so what?
It all stemmed from a journal.
Over the years, the Kronos Kingdom had secretly acquired copies of nearly every book in Ohara's collection.
They were not the originals, only duplicates.
Hades understood the importance of knowledge.
Ohara had the largest collection of books in the world. Though it had been founded only four hundred years ago, its books covered a thousand years of history, and some went back several thousand.
The world's recorded history stretched back more than a thousand years, and Ohara held records of most of it.
The Void Century was called a void because a piece was missing from that long historical record.
The World Government had concealed it by every means available, but it could not bury everything. Ohara still held scattered fragments concerning those hundred-odd years.
Knowledge was a precious form of wealth, and it