"To be able to maintain so many formations without completely collapsing in more than two thousand years, this formation core must be a good treasure!"

To the naked eye.

At the core of the formation, there is an existence similar to a 'ball of light', and this ball is not small, approximately close to the size of a basketball.

However, because it was covered with various formation patterns, Lin Fan was not sure what it was for a while.

But one thing is certain, that is, this thing is definitely not simple!

The entire underground palace's 'Xumi Yu Mustard Seed' formation, the 'Blue Falling Nine Heavens' scene of the blue falling underworld, the starry sky, the underworld road, the ladder to heaven, and everything here...

The core of the formation is all here, and all the energy sources of the formation in the underground palace are 'passed' out from the core!

So many formations and such a huge project have been maintained for more than two thousand years without running out of energy.

Is this ‘formation eye’ a mortal thing?!

…

Lin Fan narrowed his eyes slightly, inspecting and exploring carefully.

Soon, he found clues.

"A huge spiritual stone?"

Although it can't be seen clearly, some problems can be vaguely seen through those formations. For example, looking at it, apart from the color, light, etc., it really looks like a spiritual stone.

But it is not an ordinary spiritual stone, nor is it a spiritual stone, but like a top-grade spiritual stone!

"However, shouldn't the top-grade spiritual stones be similar in size to ordinary spiritual stones, but hundreds of times higher in quality?"

"But the piece in front of you is dozens, hundreds of times larger than the top-quality spiritual stone, right?"

"So what is this?"

"Super giant premium spiritual stone?!"

Lin Fan muttered for a while, but soon he didn't want to care about these details: "No matter what this thing is, it must be useful to me!"

"Even after thousands of years have passed, I estimate that the spiritual energy in it is definitely much more than the best spiritual stone. With it, it may be able to help me break through to the Nascent Soul realm quickly, plus I can refine some in the coffin.

Magic weapon or something..."

"It can also improve my combat power a lot in the short term. In this way, the purpose of this trip has been achieved."

"But, it's a pity that I can't take this thing out now..."

Want to get multiple formation guards? It’s not that easy!

Violence? Even if violence breaks the formation and takes away the core, the entire palace will collapse in an instant.

"That's all, professionals, let the professionals handle it."

Lin Fan slowly rose into the air.

"This thing can't be taken away for the time being, and the formation is so troublesome. It might be of great benefit to him to have Old Chen come over and study it!"

"At the same time... I am only one person after all. If I destroy the underground palace directly, a lot of important information may be left behind."

"In that case..."

"Let Old Chen come over and find a way to break these formations. At the same time, let Zhou Chuan and the others conduct archaeological excavations as much as possible. It is best to get some other important information and provide me with some help."
Chapter completed!