A familiar aura emerged from the coffin.

At this moment, unbeknownst to Su Mu, fireflies had appeared in the cemetery, emitting a faint green glow, like stars adorning the dim burial ground.

In the next second, a larger firefly landed on the bone coffin. With its dim glow, Su Mu finally saw the full view inside the coffin.

A rectangular block of ice was placed inside the bone coffin.

The familiar aura Su Mu felt was emanating from this ice block—it was the river water from outside!

However, it had already solidified into ice.

Upon closer inspection, it seemed something was encased in the ice block.

Su Mu picked up the dagger and continued to carve an opening in the bone coffin, making it about three meters wide, finally seeing the object frozen inside.

What is this?

A human finger?

From its appearance, it seemed to be an index finger of the right hand, the same length as a normal human's, but the flesh was missing, leaving only a segment of the finger bone.

The bone coffin encased an ice coffin, and this massive ice coffin contained a mere eight or nine centimeters long human finger bone, creating a visual contrast.

All this effort, just to bury a single finger bone?

At this moment, as Su Mu reached out and touched the ice coffin, he was certain this frozen water was indeed the river water from outside.

Having guarded the river for so long, Su Mu's affinity with the river left no room for doubt.

Next, Su Mu drew his dagger, preparing to cut open the ice coffin, but no matter how he cut it, it was futile, not even leaving a scratch.

This left Su Mu dumbfounded.

This silver dagger of his, how could it suddenly encounter two things it couldn't cut through today?

And the key point was, it was just an ice coffin; there was no reason he couldn't cut through it!

Su Mu smashed his fist against the ice coffin, striking it dozens to hundreds of times, without leaving a single mark.

Then, Su Mu tried using the Water Control Divine Technique, but found he couldn't move it at all.

He weighed the ice coffin by one of its corners and estimated its weight to be two or three thousand pounds, far exceeding a thousand pounds.

It's no wonder, as Su Mu's current Water Control Divine Technique could only manipulate a thousand pounds of water.

But strangely, even with such weight, a mere thousand or two thousand pounds, shouldn't be too much for a Human Immortal, even a young novice could handle such weight. Even some stronger mortal warriors could carry this weight.

Yet he couldn't lift it?

This led Su Mu to wonder if he had trained in some Fake Immortal techniques...

This ice coffin seemed peculiar; yes, it must be the issue, not him.

.....

His Water Control Divine Technique included Stripping, Acceleration, Static, and Retreat.

But it couldn't melt this ice coffin that had already turned to ice.

Su Mu channeled his Cultivation Technique, releasing a surge of Spiritual Power from his palm, transforming into a blazing Spiritual Fire enveloping the entire ice coffin, but after roasting it for a whole hour, there was still no sign of melting.

Neither cutting nor hammering could break it, and even burning couldn't melt it—truly at his wits' end.

With no choice left, Su Mu had to give up on this particular tombstone.

After all, there were many others here; he couldn't hang himself on this one tree.

Su Mu inspected every corner of the coffin, finding no burial items, losing interest, he leapt out of the grave.

He moved on to the next grave.

But before digging, he retrieved three incense sticks from his Space Ring, lit them, and placed them in front of the tombstone, slowly speaking: "I mean no disrespect, I mean no disrespect."

Having said this, he began to dig with ease, and with the experience from the first time, Su Mu dug smoothly the second time, finding the right spot.

As with many things, it's hard to get it right the first time; there were even misplaced attempts, but the second time, it's much smoother.

This time, within ten minutes, he reached the coffin.

Like the previous one, it was an identical white bone coffin, made entirely of vertebra bones.

Following the earlier method, he made a large cut with the silver dagger and pried it open.

Upon opening it, Su Mu's pupils contracted slightly, his expression froze.

Like the previous one, the bone coffin contained another ice coffin.

But this time, what was frozen inside was a toe, specifically a big toe.

This time, Su Mu recalled something.

He quickly dug up a third tombstone, and after excavation, the structure was the same, with a rib frozen inside.

He dug up the fourth, fifth, sixth one, all the way to the tenth.

And found teeth, fingers, forearm bones, thumbs, and other human body parts, every piece unique!

Sitting on a tombstone, Su Mu pondered deeply, a bold hypothesis surfacing in his mind.

Perhaps these three thousand tombstones weren't burying three thousand individuals, but one single person!

He hypothesized that by digging up all three thousand tombstones, the organs could be pieced together to form a whole person's body.

However, Su Mu lacked the time and energy to dig them all up.

Although it didn't seem tiring, the dig was truly exhausting, and for some strange reason, it sapped his energy; after just ten, Su Mu was already panting heavily.

The most frustrating part was, despite the exhaustion, there were no rewards, which was really irritating.

At this moment, Su Mu suddenly had an idea. Levitation brought him up to stand in the void, overlooking the entire cemetery.

Upon careful scrutiny, he noticed that the graveyard's shape resembled a pattern, though he couldn't decipher its meaning.

The most crucial observation was the curious arrangement of these three thousand tombstones, which resembled the formation of an array.

Despite not understanding arrays, Su Mu, at times out of boredom, had glanced through ancient array texts.

The feeling Su Mu got was that this cemetery was a large array, with the tombstones acting as the array eyes; whether his guess was correct or not, he couldn't shake off this feeling.

At this point, his attention was drawn to a tombstone in the upper-right corner of the cemetery.

This particular tombstone was spaced ten meters apart from others, while the rest were precisely nine meters apart—a minor difference that didn't escape Su Mu's keen eyes.

Once he identified this tombstone, Su Mu descended to land.

Approaching the distinctive tombstone, he realized this upright stone was noticeably larger than those around it.

Scaling the tombstone, he began to dig.

After digging nearly five meters, the coffin remained elusive, whereas other tombstones usually revealed theirs at around three meters.

Su Mu continued digging, finally reaching the bottom at roughly ten meters deep.

Hmm?

What lay before him wasn't a massive bone coffin but a square black wooden box about half a meter on each side.

His analysis proved correct—this tombstone was indeed special.

Unexpectedly, Su Mu effortlessly opened the wooden box without employing any techniques.

"What is this?"

Su Mu furrowed his brow in puzzlement.

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