[Invisible Secret Word].

It’s composed of the [Secret Word of Swift] and the negative energy [Dark Truth] which consists of poison, blood, shadow, and death.

[Eight-direction Traceless] means such speed that there are no traces in every direction, already beyond the range of perception.

[Ancient and Modern Absolute Form] is even more exaggerated, reaching a certain degree of speed.

It might possibly vanish from the ancient years and the river of time.

Of course, this is Levi’s understanding, the content of the secret words is exceedingly mysterious, although he can use it, he dares not claim complete comprehension of its deeper meaning.

Earlier, he tried a small trick, covering what should be a distance of fifty thousand li in the span of one breath, and this... seems not even the maximum of [Invisible Secret Word].

Levi feels that if he continues to advance, his speed under the empowerment of secret words might truly surpass the constraints of space-time, like real light.

Currently, Levi has already mastered three kinds of bloodline secret words.

They are [Secret Word of Battle] and [Flame True Word] forming [Secret Word of Destruction]; [Secret Word of Steel] and [Water and Soil Truth] forming [Vajra Secret Word].

Secret Word of Destruction is the ultimate slaughter, as the saying goes ’[If you gaze upon me, you can see destruction]’. The Crimson Emperor Dragon is destruction itself, seeing it is seeing destruction.

Vajra Secret Word, ultimate physical defense, ’[Mountains and seas may move, but my body does not budge]’.

It is a kind of absolute confidence, even if an attack shakes mountains and seas, I would not retreat a step.

Now with another ultimate speed, Levi is even more looking forward to the next three secret words.

...

Emperor’s Palace.

Levi holds a colorless transparent potion in his hand.

This is the [Return Secret Medicine] used for reconstructing the Extreme Dark Divine Mark.

Without hesitation, he drinks it all at once.

As the power of the secret medicine enters his body, Levi controls and guides it into the 15 Extreme Dark Divine Marks in his body.

In an instant, Extreme Dark Divine Marks shatter into countless Divine Palace Particles, forming negative energy storms within.

Levi dares not delay; immediately, he begins to condense the divine marks. Cultivation knows no age, in the blink of an eye, eight years have passed.

Nora 730, Blood Battle 518. Levi opens his eyes, his face full of joy.

"The work of re-condensing the divine marks was smoother than I imagined, completed in eight years."

Overall, it’s just re-threading the previous bloodline divine marks, so it’s particularly smooth.

Opening the proficiency panel, it shows there are already 22 Extreme Dark Divine Marks.

From now on, you can normally cultivate and condense level 8 divine marks.

"This Return Secret Medicine is truly miraculous, the cost of such targeted disperse and rebuild for those with long lifespans is nothing, it’s greatly useful for the path of a knight afterward."

Thinking back, the promotion potion recipe was also given by the proficiency panel.

This thing doesn’t merely display proficiency.

It continuously evolves, and the condition for evolution is Levi’s own realm and knowledge level improvement.

"If a potion suitable for wizards can be researched based on the Return Secret Medicine, then perhaps Hundred Flowers could even turn around to rebuild the sixth-circle Witch Mark. However, knights and wizards are entirely different systems, the difficulty of this is still very great, if researched, it would hold significance not lesser than life-prolonging potions for the Wizard World."

Situations like Hundred Flowers are certainly not uncommon in the Wizard World.

Due to short lifespans, some wizards during the sixth-circle period rush to progress.

They might have just branded the most basic 9 Witch Marks before advancing.

Then by the seven-circle or eighth-circle, fortuitously encountered other experiences.

Either their lifespan extended, or their talent increased significantly.

At this point, they wish to reverse and condense six-ring Witch Marks, but the opportunity is eternally missed.

This Return Potion serves as an opportunity for wizards to patch up deficiencies.

In this way, the probability of Wizard World producing Grand Wizard, and even the Legendary Wizard, must be greatly enhanced.

Levi contemplated internally.

"Triss would surely be interested in such a potion, I need to discuss this with her."

...

Witch’s Family.

Levi, Triss, and Elena sit together.

"Return Potion? There’s such a potion, interesting."

Triss listens to Levi’s introduction of the Return Potion, her eyes slightly moved.

Elena says:

"If it really is researched, that would be great, our hope of advancing to Grand Wizard will be even greater."

Triss says:

"Indeed."

She is also a Water Element Child, with similar talent to Elena; previously she advanced to seven-circle with 12 Witch Marks.

After the seventh-circle, her strength improved, and due to war merit refined many Morning Stars and even Bright Moon Truth Oddities, her acquired talent surged, at this moment, she feels the 12 Witch Marks of the sixth-circle are somewhat lacking.

According to Levi’s theory and the answers from consulting Black Abyss teacher, Witch Mark quantity indeed relates to the advancement to Grand Wizard and even Legendary Wizard.

With her current talent, she actually has confidence to brand 45 Witch Marks.

However, due to only 12 Witch Marks in the sixth-circle, the numbers across three levels of Witch Marks are unbalanced.

Indeed, as seen from cases found by Hundred Flowers, there is no shortage of cases where Witch Mark quantity imbalance, even under 45 Witch Marks, still advanced to Grand Wizard.

But this phenomenon is purely survivorship bias. If you can lay a solid foundation to advance to Grand Wizard with greater certainty, it’s obviously better.

Therefore, she is extremely interested in such a potion.

"Levi, can this potion be made known to Black Abyss teacher and Ms. Lucy? I want them to join our research project, just like the previous life-prolonging potions. Depending solely on our knowledge, even if it’s researched, who knows how long it would take."