If you've spent any time in the webnovel community, you know the name Klein Moretti. You know the gray fog. You know the terrified "monsters" who realize they’ve accidentally stumbled into a divine meeting. But when people talk about Lord of the Mysteries: The Fool Arc, they aren't just talking about the final chapters. They’re talking about the culmination of a 2.6-million-word journey from a humble keyboard repairman to a Great Old One. It is a masterpiece of world-building that shouldn't work. Honestly, the sheer density of Cthulhu-mythos-meets-Victorian-steampunk should have collapsed under its own weight, but Cuttlefish that Loves Diving pulled it off.
Let's be real: most progression fantasy stories get boring when the protagonist becomes a god. The stakes vanish. The tension dies. Not here. In the Fool Arc, the horror actually gets worse because Klein finally sees the "curtain" for what it is.
The Weight of the Fool Sequence 0
To understand the Lord of the Mysteries: The Fool Arc, you have to understand the specific flavor of misery Klein endures to get there. Becoming "The Fool" isn't a reward; it’s a desperate survival tactic. Throughout the story, the Fool was a mask Klein wore to stay alive. By the final arc, the mask has to become his face.
The ritual itself is legendary. To become a Sequence 0 Fool, a Beyonder has to fool time, history, or fate. This isn't just a "kill a big boss and level up" moment. It’s a conceptual battle. Klein’s apotheosis ritual is one of the most stressful sequences in modern fantasy literature. He isn't just fighting the Amon family—he’s fighting his own humanity.
He had to return to the forgotten history of the "Old Era" (our era) and reconcile the fact that he is a man out of time. The emotional core of this arc is grief. Klein realizes he can never go back to his original world because that world has been dead for millennia. The "Fooling" of history involves him acknowledging his past while simultaneously severing his ties to it to protect the future.
Amon: The Antagonist Who Actually Terrifies
We can't talk about the Fool Arc without talking about the "God of Mischief," Amon. Most villains give a monologue. Amon just adjusts his monocle and ruins your entire bloodline. He is the perfect foil for Klein. While Klein represents the "Fool" who brings hope through deception, Amon represents the "Error" that exploits every loophole in existence.
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Their battle in the astral world and the Forsaken Land of the Gods is a high-speed chess match. It’s mind-bending. There are moments where you think Klein has the upper hand, only for a monocle to appear on his own face. It’s psychological horror at its finest. The tension in these chapters is why the series ranks so high on platforms like Qidian and Webnovel. People weren't just reading for the fights; they were reading to see if Klein could keep his sanity.
The World-Building Payoff
The Lord of the Mysteries: The Fool Arc is where every single Chekhov's Gun from the first 1,000 chapters finally fires. Remember the Antigonus family? The Hornacis mountain range? The weird puppets in the early arcs? It all leads here.
Cuttlefish wrote a story where the mystery isn't just a subplot—it's the engine. When the truth about the "Original Creator" and the "Underground" is finally revealed, it recontextualizes everything you thought you knew about the Church of the Evernight Goddess and the Lord of Storms. The scale is massive. We go from worrying about a few gold pounds in Tingen to worrying about the literal physical laws of the universe breaking down as the barriers weaken.
One thing people often miss is the "Antigonus Puppet" tragedy. Klein basically has to "steal" the divinity of a half-mad god-ancestor who has been sitting on a throne of corpses for centuries. It’s grim. It’s dark. It perfectly encapsulates the "Law of Beyonder Characteristics Conservation"—nothing is gained without someone else losing everything.
The Tarot Club: More Than Just Side Characters
Even as Klein ascends to the status of a Great Old One, the Tarot Club remains the heart of the story. Seeing Audrey, Alger, and the rest realize that their "Mr. Fool" is actually fighting a war for the survival of the planet is a powerful beat. The distance between the members and Klein grows in terms of power, but their emotional connection is what keeps Klein from losing himself to the "Will of the Celestial Worthy."
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That's the real conflict of the Lord of the Mysteries: The Fool Arc. It’s not Klein vs. Amon. It’s Klein vs. The Celestial Worthy of Heaven and Earth. Every time Klein uses his powers, the "Oldest One" wakes up a little bit more inside him.
Why the Ending Hits Differently
The "Fool" is a card of beginnings and infinite possibilities, which is ironic because the arc ends with a deep sleep. Klein’s choice to enter a slumber to fight the Celestial Worthy is a classic "Selfless Hero" trope, but it feels earned. He’s tired. He’s been through hell.
Most stories end with the hero sitting on a throne. Klein ends the arc by falling asleep in a world that doesn't even know he saved it. This "silent protector" vibe is what separates Lord of the Mysteries from generic cultivation stories. There’s a melancholy to it. The world continues, the sun rises, and the Tarot Club continues to operate in his name, but the man himself is locked in a mental cage match with a cosmic entity.
Addressing the Misconceptions
A lot of readers think the Fool Arc is rushed. I get it. The pacing speeds up significantly compared to the "slice of life" vibes of the early Tingen or Backlund chapters. However, if you look at the internal logic, the acceleration makes sense. Once you reach the "King of Angels" level, events happen at the speed of thought.
Another misconception is that Klein is "too OP." In reality, even as the Fool, he is constantly the underdog. He is fighting entities that have existed since the dawn of time. He’s a guy who’s been around for maybe a few years playing a game against beings who are billions of years old. He wins not through raw power, but through the very essence of the Fool: Deception and Preparation.
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Actionable Insights for Readers and Writers
If you’re a fan of the series or an aspiring writer looking at why Lord of the Mysteries: The Fool Arc works so well, there are a few key takeaways you can apply to your own consumption of media:
- Look for Internal Consistency over Power Levels: The reason Klein's victory feels satisfying is that it follows the rules of the "Paths of Divinity" established in chapter 1. Don't let a story break its own rules for a "cool" moment.
- Track the Emotional Anchors: Notice how Klein’s "anchors" (his followers and his memories of being Zhou Mingrui) are literal plot points. In any high-stakes story, the protagonist needs something to keep them human, or the reader loses interest.
- Analyze the Antagonist's Logic: Amon isn't "evil" in a cartoonish way; he’s a personification of a concept (Error). When you're reading, ask yourself if the villain is a character or just a hurdle. Amon is a character with his own terrifying logic.
- Re-read the First Arc: If you’ve finished the Fool Arc, go back to the very first chapter. You’ll see that the "Great Fog" and the "Luck Enhancement Ritual" were clues from page one. The level of planning Cuttlefish did is insane.
The legacy of the Fool Arc isn't just in its ending, but in how it paved the way for the sequel, Circle of Inevitability. It set a standard for "Webnovel Literature" that proved you can have deep, complex, and philosophically challenging stories in a serialized format. Klein Moretti's journey is a reminder that even in a world of madness and cosmic horror, a little bit of "foolishness" can save the world.
Next time you see a monocle, just remember to check your pockets—and your sanity. The Fool is watching, but he’s probably just trying to figure out how to be human again.
To fully grasp the complexity of the Fool Arc, your best move is to document the "Sequence 0" rituals for the neighboring pathways like the Door and Error. Seeing how they interconnect reveals the true genius of the world's design. Also, pay close attention to the "Seven Lights" of the spirit world in your re-reads; their dialogue in the final arc contains the most direct lore dumps about the nature of the Universe that Klein—and the reader—finally have the authority to hear.