The advancement potion for the Heavenly King Dragon Breathing Skill is ready, and Levi has found an innocent island in the outer sea to begin his retreat.

Two years later.

The year 732 in the Nora Calendar, the 520th year of the Blood Battle. The Heavenly King Dragon Breathing Skill successfully advanced to level 8, which meant another island disappeared from the map.

This time, the Dark Tribulation involved a Level 8 Demon, but it was a Stone Statue Demon. Levi easily slashed it with the Level 8 Divine Weapon [Wind Thunder Wings], transforming it into a Wind and Thunder Giant Sword, and the materials from its body became part of the fortification plan.

Levi had a realization that, in the dark recesses of the Land of Darkness, an invisible hand seems to be controlling all living beings in the world. The demons, appearing to ambush Levi, were in fact a part of this Dark Tribulation.

All living beings, even in the Multidimensional Plane, are nurtured by the Land of Darkness itself.

"So, transcending the Multidimensional Plane is easy, but transcending the Land of Darkness is difficult... Even the Heavenly Father, Legendary Wizards, and Nightmare Monarchs might just be pawns before the Land of Darkness."

Whether the Land of Darkness is sentient or not, Levi was uncertain.

He opened the proficiency panel.

Levi——————

Heavenly King Dragon Breathing Skill: 20th stage (1/20,000,000), Special Effect: Heavenly King Dragon Body·Mythical (Level 8 Early Stage), Bloodline Dharma Idol: Wind and Thunder Surge; Blood Source Armor: Storm Dragon Armor; Exclusive Weapon: Wind Thunder Wings (Level 8), Bloodline Divine Patterns: 22 threads/66 threads. Bloodline Secret Word: Indomitable (My determination is unending, growing stronger over time.)

...

Overall, the changes brought by the Level 8 advancement of the Heavenly King Dragon Breathing Skill were similar to those of the previous breathing techniques.

Endurance increased, thunder element affinity became superior, and various spell abilities improved.

The commonly used control skills [Wind Illusion Realm] and [Silver Mountain Skyfall], along with [Black Annihilation Divine Thunder] and [Summoning Maya] also advanced to Level 8 standards.

The [Storm Domain] range increased to 80 kilometers, within which Levi’s endurance was like a "perpetual motion machine," never knowing fatigue.

The most formidable was the ability [Traveling the Void], which increased to 50 times the normal flying speed. For Levi’s Eight Environments Realm, traveling to the Burning Rock World would only take less than a year.

It was perfect timing since he planned to visit the Spider King soon, and this skill enhancement was a great help.

Finally, there’s the Bloodline Secret Word.

Formed by the [Secret Word of Longevity] and [Wind and Thunder True Word], it became [Indomitable True Word].

[My determination is unending, growing stronger over time], the function of this secret word is simple, and that is [persistence].

This persistence is from two dimensions.

The first is the present.

With its blessing, as long as Levi remains determined, his endurance, stamina, will have no limits, continually strengthening over time.

The second is the future.

As Levi ages, his entire state, energy and spirit, and flow of vitality will climb towards the peak, reaching the pinnacle of life at the moment of his lifespan’s limit.

In short, even if Levi doesn’t advance his realm or cultivate, he will become stronger as he ages.

Of course, this enhancement cannot replace a breakthrough in major realms. Cultivation is still necessary.

Growing stronger with age!

Strength in old age!

Just like that!

Thus, this secret word, though seemingly inconspicuous, has immense utility in the long term.

For those long-lived, naturally powerful longevity species, just living would make them stronger, ultimately leading to unimaginable power expansion.

"Destruction, King Kong, Invisible, Indomitable... the four Secret Words each have their characteristics and are all powerful."

Levi felt elated.

Only the Nightmare Dragon and Death Ember Dragon have yet to break through to Level 8.

...

Ancient Banyan Fairyland.

Dreamy Cloud Swamp.

Rumbling!

Dark clouds gathered, a fierce wind howled, and infinite vapor surged from all directions, quickly forming a colossal giant beast resembling both a turtle and a dragon, bursting with overwhelming Dragon’s Might.

"Heavens, am I seeing things? Is Ratti undergoing a tribulation?"

"Incredible, it really is. Ratti is rising!"

"Let’s go take a look."

Dragon Palace members rushed to the scene, seeing in the sky above the Water Mansion, a giant turtle with a shell diameter of over two hundred meters stretching its neck from its shell, roaring towards the sky.

Waves of water formed crescent-shaped sky charges, colliding with the giant beast’s silhouette in the sky.

"Hang in there, Dragon Turtle!"

"No worries, Ratti, with your foundation and a thousand years of accumulation, you’re bound to succeed."

The battle between the two giant turtles was quite... unremarkable. The movements were so slow that neither was willing to move, just standing there shooting water waves at each other, contesting their internal energy. Ultimately, Ratti prevailed, slaying the opponent.

The Dragon Clan onlookers were rather drowsy; such a tribulation was unprecedented.

The elder Black Lotus Beast said:

"Congratulations, Prime Minister, for now being among the ranks of Sky Dragon Generals."

They were the earliest to know these sub-dragons and had the best relationships.

The Fire Breathing Dragon proudly said:

"Keep it up, you’ve got a long way to go. Unlike me, who has already achieved success and fame."

Sensing Ratti’s breakthrough, Levi appeared, showing a satisfied expression.

"Quite impressive. Ratti, from now on, you’ll be the [Heavenly Longevity Dragon General]."

It’s worth noting that most transcendent creatures in the Dragon Clan, from the moment they are born, have a fixed lifespan. Subsequent advancements merely mean growth without increasing lifespan. So Ratti still has over nine thousand years of remaining lifespan.