The fairy maid cheers for her deceased master today.

The content of the experimental data is not important.

Vast amounts of data, densely packed. Just a glance isn't enough to understand what it's trying to say.

It's not that the data is bad, but rather that Catherine was already there, making annotations with a pen.

She visualized the experimental data directly, annotating it as follows:

The hallucinogenically affected person can retain some sanity and write about 10 to 15 sentences. Afterward, the effects intensify dramatically, and the written content becomes almost entirely illogical.

"Elena?"

"What?"

"Catherine, you should know a lot about the effects of this hallucinogen."

"Yes, I think so. She watched it many times."

Irene tries to recall.

"I vaguely remember this page."

Are you sure?

"Yes! I'm sure! Because I also really like plants... so I was curious about what Catherine was looking at, so I glanced at her a few more times."

Sure enough.

Catherine was also aware of how long it would take for the hallucinogen's effects to intensify.

Therefore, she would definitely put the most crucial information in the first 10 to 15 sentences. And this also aligns with normal human psychology.

Just like in some detective stories, the victim must write down the killer's name before dying. Because that's the most crucial information. It's not about how nice the weather is, or what the killer's hobbies are...

If you write it like that, you deserve to die. Even a detective can't save you.

Following this line of thought, Ax immediately retrieved the article from earlier and reorganized it.

Here is a summary of the most crucial content from the four articles.

For example, the first one—

The First Chapter: The Bells by the River

I stood by the window, watching the Thames River ripple.

The river water is green, no, it's blue, maybe it's purple? Swans are swimming on the river, wearing little hats and singing opera.

The Big Ben in the distance is chiming, not with a "ding-dong," but with a "meow-meow," like a group of cats having a meeting on the roof.

My room has four walls, but sometimes they become three or five, depending on my mood.

There's a painting on the wall. The figures in the painting move, they wink at me, and tell me secrets.

The secret is about a place with iron bars and high walls, but the walls aren't for imprisoning people; they're for painting.

I heard music downstairs, it was a Viennese waltz, but the dancers were all penguins.

They were dressed in tailcoats and twirled gracefully.

But where does the music come from? Perhaps it comes from Westminster Palace across the river, but Westminster Palace isn't on the other side; it's in my head.

No, my mind is a mess. I need to take this opportunity to organize the key clues.

Hmm... key clue: the bells are pointing north, and the penguin dance suggests a cold place, so I'm at the Tower of London.

No, not in the Tower of London, but at the top of St. Paul's Cathedral.

Wait, the cathedral didn't have a roof; it was taken away by the airship.

That's all for now. This falls into the category of 10-15 sentences.

By analogy, the key content of other articles can also be extracted.

Then Axe immediately noticed that the words "key clue" were mentioned at the end of the key content.

A smile finally appeared on X's lips.

"Finally, a breakthrough..."

"What is it, Sir Ax?" Elena asked expectantly.

"Catherine knew about the effects of hallucinogens. So when she was writing the mystery, she actually calculated the approximate word count... Therefore, she left us with the most specific clues."

"For example, whenever she felt that the hallucinogen was about to take full effect, she would immediately summarize the known clues...that's why the structure of the article is so strange."

"Strange?" Angel leaned closer and asked. She still didn't understand.

Ex patted her head.

"Yeah, you see, there's a long paragraph at the beginning, and then suddenly there's a sentence saying 'The key clue is,' which is actually a summary of what came before, right?"

"right!"

"So, since a summary has already been made... why did so many seemingly nonsensical sentences follow? Because the later content represents the full effect of the hallucinogens. That's why the summary paragraph appears in the very middle of the article."

Of course, this doesn't mean that once a summary is made, it cannot be expanded upon further.

Based on the known facts, Catherine must have written the final summary when the hallucinogen was almost fully taking effect. This is also the most credible part.

So basically, as soon as you see the words "key clues," you know that these are the key clues that Catherine has summarized.

It means exactly what it says; don't overthink it. Just understand it literally.

The effective content of the article is the first half, including the "key clues" paragraph.

The kidnapper imitated this structure when he was imitating writing.

Now that everything is organized, the next step is to determine which two of these four articles were written by Catherine.

"What's next, Sir Axe?"

Seeing a glimmer of hope, Elena's tone became even more urgent and passionate.

"Don't rush."

Axe placed all four articles on the coffee table, covering up the useless parts.

Then he directed Angel to bring a blank sheet of paper, ready to write down the analysis.

On the surface, all four articles are full of nonsensical elements and chaotic logic.

However, a closer analysis might reveal some differences.

Soon, Ax summarized the content of the four articles according to several dimensions.

Regarding "the characteristics and differences of perceptual description":

The first mystery story: Visual Distortion (the river changes color, and figures in the painting move).

The second mystery article: a blend of touch and sight (cold brick walls, blue roses).

The third mystery story: Dynamic Illusion (Moving Rooms, Talking Bridge).

The fourth mystery article: Time and Space Distortion (A window made of time, seeing the whole of London).

Then, regarding the mentioned "geographical elements of London":

First article: Big Ben, Palace of Westminster, St. Paul's Cathedral.

Second article: East London, Whitechapel, slums and factories.

The third article: The Thames, London Bridge, Tower Bridge, Westminster Bridge.

Fourth article: The Tower, Westminster, the British Museum.

Regarding the "emotional tone" dimension of the article:

First article: Fantasy, fairy tale (swans wearing hats, cats holding a meeting).

The second article: gloomy and oppressive (cold, ruins, underground tunnels).

The third article: Flow and Change (Walking in the Fog, The Bridge That Talks).

Fourth article: Grand, Surreal (Seeing the whole of London).

Regarding the article's "logical structure":

First article: Leaps and contradictions (first saying the bells point north, then saying it's at St. Paul's Cathedral).

The second article: After a partial plausibility, a sudden twist occurs (the brick wall pattern points to East London, but there is no rose garden in Whitechapel).

The third article: Fluent but absurd (the anthropomorphic dialogue of the bridge).

Fourth article: Abstraction and Philosophy (Time Window, Rainbow Metaphor)

Regarding the article's "key clues":

First article: Multiple contradictory location clues.

The second article: Contradictory geographical descriptions.

The third article: A single but vague location clue.

Fourth article: Abstract symbolic clues.

Ax writes down whatever comes to mind, like a brainstorming session. He writes down all the points he thinks are worth noting.

Angel was already leaning over the coffee table, intently watching as Ax wrote down the characteristics and differences of all the articles.

"First of all, I should state that my analysis may not be correct," X said to Angel.

"Why?"

"However, perhaps we can glean something from these analyses."