The cave was deathly silent, except for a brief flash of light from a flashlight.

Yu Xiangnan and Zhu Xiaoxiao stared at each other, speechless.

So you're really doing it the other way around?

Sure enough, apart from the light flashing like a flashbang, there was no other movement.

Yu Xiangnan pursed his lips, pondered for a moment, and then said calmly and steadily, "Continuing to try blindly like this isn't a solution; we need to change our approach. Now that we have the props related to the key clues, these clues must be connected and not completely useless..."

Finding connections and breakthroughs in the existing information might solve the puzzle, instead of continuing to probe aimlessly.

The old book and the liquid in the wooden box were no accident; they are likely closely linked to the core of the entire incident. Perhaps a page in the book holds a crucial clue about the liquid's purpose.

We need to carefully review the details we overlooked before.

Yu Xiangnan looked at the wooden box in Zhu Xiaoxiao's hand and asked, "Xiaoxiao, may I take a look at this wooden box?"

Zhu Xiaoxiao paused for a moment, then handed over the wooden box. "Of course, take a look."

Yu Xiangnan took the wooden box and looked at it.

On the box, there was an exquisitely engraved pattern of a small figure holding a bottle of liquid, the bottle tilted so that a few drops of liquid seemed to be slowly dripping down.

liquid......

Does this image refer to the bottle of liquid in the wooden box?

But where exactly is this liquid to be dripped? Is it to be dripped directly onto the altar?

She glanced at it and found that the liquid in the bottle was about 5 milliliters. If she took out a few drops to try, would it result in not having enough milliliters in the end, thus failing to trigger the specific condition?

Yu Xiangnan planned to exchange clues with Zhu Xiaoxiao first.

After all, she only has the first three key clues at hand, but not the fourth or fifth.

After a brief exchange of information, she discovered that Zhu Xiaoxiao had found clue five, in addition to the clue about the wooden box.

Clue 5: (Salesperson at the supply and marketing cooperative) "One day when I was taking inventory, I found a tattered notebook in a corner of the warehouse. It was covered in scribbles. I struggled to decipher it, and it mentioned 'holy water,' saying that if it was dripped into the sky, it could purify bad things. Isn't that just nonsense?"

Upon hearing this clue, Yu Xiangnan's mind raced.

First, the old book found in the cultural center warehouse mentioned by the funeral home owner contains the words "Yin and Yang are reversed, evil spirits will appear," and it also contains a simple map that guides players to the cave. The sinister patterns on the abandoned stone statues in the mountain god temple are similar to the patterns outside the cave, also pointing to this cave.

As for the "holy water" mentioned by the salesperson at the supply and marketing cooperative in Clue Five, which can purify bad things and must be dripped "from the sky"...

Could the unknown liquid in this wooden box be holy water?

Yu Xiangnan frowned slightly, turned to Zhu Xiaoxiao who was also deep in thought, and asked, "Do you think the unknown liquid in this wooden box could be holy water?"

"Holy water?" Zhu Xiaoxiao was taken aback for a moment, then said, "Hmm, I've thought about that, but if this unknown liquid is holy water, then what does 'heaven' refer to?"

Yu Xiangnan pursed his lips and couldn't help but look up.

There is no "sky".

The only feature is the uneven, jagged, and upside-down cave ceiling.

If physics still exists, water, affected by gravity, will flow from high to low places, so it's impossible for it to fall into the sky.

Unless, the "heaven" mentioned in this clue is not the real "heaven".

Yu Xiangnan opened the old book again and examined it page by page. When his gaze fell on a certain page in the middle, he was immediately fixed on it.

In the upper left corner of this page, a star and moon symbol comes into view, its strokes very light, as if the artist deliberately did not want it to be too eye-catching.

This is......

At the same time, Zhu Xiaoxiao paced around the altar, not missing any detail. After circling around, she keenly noticed a slight, barely noticeable protrusion on the altar.

She squatted down, raised her hand, and unexpectedly, the protruding part broke off with just a light touch!

Zhu Xiaoxiao quickly crouched down and peered into the recessed area. After seeing the pattern inside, she subconsciously murmured, "The sun?"

Yu Xiangnan was startled and quickly rushed over.

"What's wrong?"

Zhu Xiaoxiao said, "There seems to be a sun symbol in here, but I'm not sure if I'm seeing things..."

Then, she moved aside, and Yu Xiangnan hesitated slightly before squatting down and focusing his gaze on her.

Sure enough, the recessed part was indeed engraved with a sun symbol!

Stars, moon, sun...

Yu Xiangnan suddenly stood up and said, "Is it possible that this altar is the so-called 'Heaven'?"

"Just now, I found the star and moon symbols in that old book. Upon closer inspection, their size and shape are similar to the sun symbol on this altar. However, if I simply place this book on the altar, there is no reaction."

"Is it because they all belong to 'heaven,' and only the use of 'holy water' can produce changes?"

Upon hearing this, Zhu Xiaoxiao was slightly taken aback, and then quickly turned her gaze to the star and moon symbols on the old book.

"You're right, let's give it a try?"

Yu Xiangnan nodded, took the unidentified liquid from the wooden box, and carefully dripped it onto the page of the old book where stars and moons were drawn.

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