Lin Wen worked on the embankment for a day and night, completing the 16 hours of "Strength of Nine Bulls and Two Tigers".

The "Forbidden Qi Divine Power" only lasted for one hour, and Lin Wen found it very easy during the first hour.

However, after the "Forbidden Qi Divine Power" disappeared, the sledgehammer suddenly became extremely heavy, and Lin Wen had to exert all his strength to lift it.

Not only that, due to the long handle of the hammer, Lin Wen's own weight was much lower than that of the sledgehammer, so the issue of balance was particularly important.

After failing multiple times, Lin Wen gradually mastered the trick of balance, which was to always keep the force directed below his center of gravity.

This way, he could always keep his feet on the ground and not be lifted off.

After completing the second hour, Lin Wen was already soaked in sweat, but he glanced at his primordial spirit and did not use any more spells.

The "Forbidden Qi Divine Power" was very expensive, consuming 25% of his primordial spirit, and only lasted for one hour, so the cost-effectiveness was too low.

The "Strength of Nine Bulls and Two Tigers" only consumed 15% of his primordial spirit, but lasted for 16 hours, so in terms of physical strength enhancement, there wasn't much difference between the two.

Therefore, this spell became his main focus.

Although he was a bit tired from relying solely on the "Strength of Nine Bulls and Two Tigers", this difficulty could be completely overcome.

Lin Wen lifted the sledgehammer and imagined himself holding a long sword in the immortal realm for a second. All the soreness and fatigue in his body disappeared, and with one strike, he felt as if he had gained good fortune and merged with the air, making him feel refreshed.

Lin Wen worked on the embankment for a full 16 hours, and by the end, he was numb, with no feeling in his hands and feet, but his spirit remained high.

The moment the spell ended, Lin Wen collapsed to the ground.

After sleeping for an unknown amount of time, when he woke up again, the stars and moon were in the sky. Lin Wen hesitated to use the spell "Seeing Without Eyes", but fortunately, he had made a lot of preparations beforehand and brought plenty of supplies.

Lin Wen put on a miner's hat, ate some dry food, drank some cold water, ignored the groans of his bones and muscles, and once again activated the "Strength of Nine Bulls and Two Tigers" for another 16 hours.

When he woke up for the third time, the sun was just rising, and the rays of light spread across the sky. Lin Wen felt as if he was bathing in the path to immortality, and his body was filled with strength once again. He activated the "Strength of Nine Bulls and Two Tigers" for the third time.

After 16 hours, the 2600-meter embankment was completely hammered, sinking 3 meters into the ground of the 21-meter height.

The soil on the embankment was as hard as iron, and even with Lin Wen's weight of 300 tons, he couldn't leave footprints.

Any hidden holes or ant nests in the embankment had long disappeared without a trace, and any impurities that couldn't withstand the pressure were blown away, even the concrete was shattered.

When he woke up for the fourth time, the sun was directly overhead.

Lin Wen walked around the embankment and felt very satisfied, but there was one final step.

Lin Wen came to the center of the embankment, squatted down, and pressed his five fingers to the ground.

Of course, he wasn't trying to communicate with spirits, but rather activating a spell he had planned for a long time.

"Transform Earth into Stone".

A light gray Golden Elixir stage spell, consuming 50% of his primordial spirit, it could transform soil into rocks, and the range and effect depended on the quality of the soil.

His spirit was instantly drawn away, and in Lin Wen's perception, he seemed to sink down with an invisible green light that mortals couldn't see.

Any soil that was filtered by the green light turned into rocks.

The green light quickly expanded from Lin Wen's palm to all directions when it reached the embankment, the speed of the green light suddenly slowed down, as if encountering strong resistance.

Moreover, with every inch it passed, the brightness of the green light dimmed.

Lin Wen immediately controlled the green light to stop expanding sideways, only extending three meters below the embankment foundation.

Within the main body of the embankment, the green light encountered no obstacles and expanded rapidly, with the brightness weakening at a slower pace.

After a moment, the entire embankment was petrified, and only a trace of the green light remained.

Lin Wen let this trace of green light rush into the river, and it disappeared in an instant, leaving only some broken stones in the river, which were washed away instantly.

The experiment failed, "Transform Earth into Stone" couldn't turn water into stone.

But it didn't matter.

Lin Wen stood up and saw the embankment, which seemed to be carved out of a whole piece of granite, and he smiled with satisfaction.

"Transform Earth into Stone" had very high requirements for the quality of the soil. If he didn't forge the embankment first and directly used this spell, only a very small part of the embankment would be petrified.

To achieve the effect he had today, with his current cultivation level, he would probably need hundreds of spells.

That's why he specially created a giant iron hammer, used his own strength to forge the embankment, compact the soil, remove impurities, and refine it like steel.

He couldn't be sure of the effect of the spell, so he deliberately compressed the consumption and managed to restore his primordial spirit to 50% within a few days, and adjusted his natural state of Dao to the highest level.

This way, he could use two "Transform Earth into Stone" spells to ensure that one was not enough.

Unexpectedly, the effect was even better than he imagined, and one spell was enough, and even a little more.

Unlike when he rushed to repair the embankment, perhaps because the water level of the Tianjiang River was extremely low, there was no direct good fortune gained.

However.

The daily good fortune of Changshan County increased by 3 points.

From 191 to 194.

This was a continuous shaking fortune tree, much stronger than a one-time good fortune.

Most importantly.

When the spell was completed, Lin Wen clearly saw that there were countless fine threads of karma on his body, and they had increased significantly.

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His primordial spirit limit suddenly became 100.03%.

Although it was only a slight enhancement, it was a good start, enough to make Lin Wen laugh uncontrollably.

This was his ultimate plan for becoming an immortal.

Brushing good fortune, increasing karma threads, and karma threads would strengthen the primordial spirit.The stronger the primordial spirit, the more spells can be used.

More spells bring more good fortune, and more good fortune brings more karma.

In this way, a perfect cycle is formed.

The chicken lays the egg, and the egg hatches the chicken, endlessly.

The ancestor of the Dao is taking off today!

Hahaha!

In order to avoid being too shocking and unable to explain clearly, Lin Wen exerted his full strength and built a sub-dike on the granite embankment, using stones.

However, the main embankment is very high, and the highest water level of Tianjiang has not exceeded 3 meters below the main embankment, so the sub-dike is mostly unnecessary.

But just in case, Lin Wen still built a simple sub-dike and decorated it with mud.

In case one day in the future, Tianjiang breaks through the bottleneck and reaches a higher realm, reinforcing this sub-dike would be enough.

As long as the main embankment below can withstand the pressure, there will be no catastrophic flooding like before.

On the fifth day, Lin Wen notified Zhao Minggong that the construction of the main embankment was completed and asked him to withdraw all the laborers from the second dangerous embankment in Yingjia Village.

The most professional engineering team of the empire is coming to take over!

What troubled Lin Wen a bit was that Zhao Minggong requested an acceptance inspection and inquired about the price of the engineering team.

This was a reasonable request and not easy to refuse.

Helpless, Lin Wen had to agree to the acceptance inspection and casually mentioned a number, then reported his own bank account to Old Xie.

Old Xie didn't think much about it and thought that Sheriff Lin wanted to negotiate with the professional engineering team himself, so he listed this account as the payment account.

Afterwards, Lin Wen carried his big hammer and went to the embankment in Yingjia Village, starting his second embankment forging career.

---

The next day.

Zhao Minggong's deputy, Zhang Song, brought a team of professional engineering experts to inspect the embankment.

The group of people carried a complete set of professional instruments and climbed onto the main embankment.

The chief expert was a man in his forties with gold-rimmed glasses. He looked young on the outside.

After surveying the terrain of the embankment, he commented, "There is a problem with the location. The embankment is too close, narrowing the river channel and increasing the impact of the water flow."

He looked around and said, "This sub-dike is rough and crude, without any engineering knowledge. The person who built it is definitely an idiot."

Three auditors from the Audit Office solemnly noted the words of the chief expert. One of them asked, "In your opinion, what is the value of this sub-dike?"

The chief expert pushed his gold-rimmed glasses and disdainfully said, "According to my price standards, this inferior sub-dike is worth at most one-tenth of the standard price."

The auditor said, "Can you provide an appraisal document?"

The arrogant man with gold-rimmed glasses said, "Of course, I am responsible for my profession."

After a careful inspection by the surveyor, the corresponding data was provided. After the clerk calculated it carefully, an appraisal document was issued.

Three copies were made, one for the government staff Zhang Song, one for the auditors, and one for himself.

The sub-dike is much narrower than the main embankment. The group of people walked down the sub-dike and began the formal acceptance inspection.

The workers cleared the loose soil on the embankment surface, revealing the underlying rocky ground. The man with gold-rimmed glasses tapped it with a small hammer, and his indifferent face showed some surprise.

"This sound, there is at least a two-meter-thick large stone underneath. It must have cost a lot."

He turned to Zhang Song and asked.

Zhang Song cautiously replied, "Sheriff Lin said he hired the most professional embankment engineering team in the empire."

The man with gold-rimmed glasses sneered.

"No engineering team dares to claim to be the most professional. It's just a gimmick to deceive people. You, bring out the non-destructive testing instrument and the geological survey instrument. You, go down and inspect the foundation of the embankment."

A worker brought out a large black box and pressed it on the embankment. It would emit ultrasonic waves to penetrate into the interior of the structure and investigate its structure, damage, and defects.

Another worker set up a cylindrical object with a technological appearance.

This object would emit a special gamma ray over a large area. If the geology is compact and solid, this special gamma ray will quickly weaken. If the geology is loose, it will quickly penetrate through.

Therefore, by only detecting the intensity of the gamma ray on the other side, the geological conditions can be determined.

The worker below made a gesture, and the worker above immediately turned on the machine. Because the embankment was high, he cautiously adjusted the intensity to 1900 units.

The worker below glanced at the data on the sensor board and waved his hand, indicating that no signal was received.

The worker above was a little surprised. This should be high enough. It's just an 18-meter embankment with a certain angle. How could there be no signal?

He raised the intensity by one level, to 2200 units. The gamma ray generator buzzed, indicating that it consumed a lot of energy.

But the worker below still shook his hand.

The worker above frowned and raised it again, adjusting the energy level to 2500 units.

Still shaking his hand.

The worker above became annoyed and raised the level by two more notches, reaching 3100 units. This was already a very high-energy ray, and the generator buzzed, indicating a heavy load.

But the worker below still shook his hand.

The worker above picked up the intercom and said loudly, "I've raised it to 3100!"

The intercom replied, "That's impossible. I haven't received any radiation at all."

The person above said angrily, "Is your board not turned on? You were like this last time."

"Impossible, I turned it on."

"Is the position not right?"

"Impossible, I used triangulation to measure it, the standard angle."

"Then what the hell is the problem?""Lower the machine to its minimum setting, let's try a dry run."

The personnel above adjusted the energy level to the lowest 100, directing the gamma-ray generator straight down the embankment.

The walkie-talkie crackled: "Done, it's at 100."

"The machine is functioning properly."

"Then what's the issue?"

"Let's try again."

But the result was still zero.

"Try cranking the energy level to the maximum."

The personnel above had already sensed something was off. He adjusted the energy level to 6100, the maximum limit, emitting ultra-high-energy rays.

Excited voices came from the walkie-talkie: "We've got something."

"How much?"

"Uh, 3."

"What, 3000 what?"

"Uh, I mean the value is 3."

"That's impossible!" The personnel above immediately denied: "If we calculate based on this data, the embankment must be entirely composed of high-density, high-strength rock, with a density of at least 10 tons per cubic meter. Such rock would require special processing. Who could gather so much to build an embankment?"

"Let's change the angle and try different depths."

"Alright."

However, no matter how many positions they tried, the data remained the same. Even after changing the tools, the result was still the same.

They looked at each other in disbelief, suddenly realizing that they were standing on an incredible creation.

Thinking about the extraordinary nature of this creation, they suddenly felt unsteady, almost falling over. The operator of the instrument even collapsed on the ground.

At this moment, the man with the gold-rimmed glasses came over with his team, his face strained. He spoke to the person in charge, Zhang Song.

"Well, it's not too bad. There are no structural damages or defects. This is the standard of the Empire's professional engineering team."

When he turned around, his team was sprawled on the ground, completely unprofessional. The man with the gold-rimmed glasses was instantly furious, shouting: "What are you doing? Get up!"

The workers slowly got up.

The man with the gold-rimmed glasses was livid: "Where's the data?"

A worker timidly handed over the report.

The man with the gold-rimmed glasses snatched it, scolding: "What's wrong with you? Handing over data like it's a live grenade."

"But, but boss, this data, data..."

Seeing his professional team in such a pathetic state, the man with the gold-rimmed glasses felt his dignity was completely lost. He shouted angrily: "What's wrong with the data? We've seen all kinds of storms, and you're scared by a little anomaly?"

He looked down at the data, his face instantly turned pale. He wiped his glasses three times before he finished reading the report.

He looked up, and after a long pause, he said: "Is this real?"

Everyone nodded.

The man with the gold-rimmed glasses forced a smile, his face pale. Zhang Song asked with concern: "How's the quality?"

The man with the gold-rimmed glasses swallowed, saying: "It's fine, ha, an embankment made entirely of rock, ha, with a density of 12 tons per cubic meter, ha, no cracks, damages, or defects, ha ha, very normal, very normal, any professional construction team from the Empire can..."

He took a couple of dazed steps, looked down at his feet, and suddenly understood the terrifying nature of the massive object beneath him.

With a thud.

He collapsed to the ground.