I can return to the age of mysterious
Chapter 522 - 522 289 Ranked Fifth Dark Ultimate Form (4000)_1

Chapter 522: 289 Ranked Fifth Dark Ultimate Form (4000)_1 Chapter 522: 289 Ranked Fifth Dark Ultimate Form (4000)_1 The lamp glowed with a yellow brightness, and the patterns on the magic box in his hand gradually became clear, as if they were symbols cobbled together from the ripples on the water surface.

Casio thought of the Wisdom Rune on his chest, a black Ouroboros about the size of a palm, shaped like an “∞”. With scales that lightly reflected a dark purple glow.

The patterns on it were similar to those on the bottom of the magic box.

He couldn’t help but recall the information of the Wisdom Rune.

It was called Ouroboros, the Cup of Blood that brewed the Blood of Eternal Life, and also the Wisdom Rune that guided forward climbing.

Ouroboros comes from the mysterious Oyon Civilization, rumored to be one of the Infinite, Greatness, and Distant Five Keystones.

“So, the patterns on the Magic Box might be related to the Five Keystones in the legends of the Oyon Civilization? Or, it simply a product of that era, possessing a unified aesthetic pattern?”

Casio muttered his guesses, but the intuition in his heart inclined him more towards the former. Hence, Casio directly lifted his upper garment.

Revealing a body that was somewhat slim and weak in its normal state, the skin possessed a jade-like quality, as if it was coated with a transparent shell. Under the conditions of converging his aura, no one would regard this body as a violent fighting machine.

In front, on his chest, the logo of the Wisdom Rune was visible.

Under the light yellow halo of the lamp, it faintly emitted a dark purple color.

Casio glanced at the upper right corner, behind the Ouroboros logo of Wisdom Rune, was a long charge progress bar, which was already full now. He had killed countless dark creatures during this period, especially the Dead Blood, almost wiping out a Blood Spirit Association. The absorption of Disaster Essence had long been sufficient.

However, Casio had already used the annual enhancement opportunity of the Wisdom Rune when creating the Golem War Art.

So, the function of the Wisdom Rune temporarily fell into cooldown.

On the sofa, Casio took a careful look at the symbol pattern on the back of the Cupan Magic Box, and then looked at the logo on his chest. The more he mused, the more similar the two seemed, and the more connected they appeared.

Under the light, the Wisdom Rune faintly flickered. Quietly, the dark purple Ouroboros logo seemed to move a little.

Casio sharply captured this moment of change, a fighter’s observation and reaction capabilities are far beyond that of ordinary people. He was confident about his judgment, just now the Ouroboros logo slowly rotated.

With narrowed eyes, he was quickly thinking in his mind. Casio suddenly thought of the Cupan Magic Box in his hand, so he moved the hand holding the box a little closer to his chest. As expected, the Ouroboros logo on the chest, which had been stable, began to rotate.

The scales on its surface began to slowly move, and the node where the snakehead bit its tail also began to shift on a fixed track, at a very slow speed.

Casio’s gaze became strange.

Usually, the Wisdom Rune does not make a move, neither during normal times nor during the absorption of disasters. Only when he has fully accumulated the Disaster Essence, for his once-a-year enhancement,

Does the Ouroboros logo start to rotate quickly in cycles.

“…”

Casio couldn’t reach a conclusion for the moment, so he decisively pressed the bottom of the box directly towards his chest. Visibly, as the distance between the two decreased, the Ouroboros began to rotate violently.

The black and purple glow on the surface suddenly became dense.

The pattern at the bottom of the magic box also lit up, as if responding to it. The flickering cyan-purple brilliance was dazzling and mesmerizing.

Snap.

The two runes finally came together.

Casio shuddered violently. He felt as if a scalding-hot branding iron had been pressed onto his chest. High temperatures pierced through the flesh and seemed to quickly sweep through his entire body.

In his trance, it seemed that some sort of liquid was being secreted ceaselessly from the location of the Wisdom Rune, it was scorching hot, invisible. It seeped through the body, passing through bones and internal organs, across muscles and the epidermis.

Finally, it flowed out from the skin and was absorbed by the Cupan Magic Box.

The moment the change occurred, Casio clenched his fingers around the magic box, and with a single thought, he could pull it off.

But for some reason, he felt in his heart that this change should not be stopped. A faint voice was telling him,

The current situation was beneficial.

So Casio obeyed his intuition, he believed that a fighter’s instinct of seeking profit and avoiding harm could absolutely not harm himself.

Time passed, second by second.

Casio gradually moved his gaze to the upper right corner of his line of sight.

Behind the Wisdom Rune, the progress bar for Disaster Essence accumulation was noticeably shortening, as if it was being used up by something.

He didn’t know how long it had been when there came a click from his chest.

He looked down and found that the rugged body of the Cupan Magic Box had cracked. Those materials which were somewhat like metal fell one by one, disintegrating and dissipating in the air. Under the light, they looked like a trace of fleeting silver-white fog.

A palm-sized page fell into Casio’s hand with a soft thud, the protective outer shell of the Cupan Magic Box had been unlocked.

He immediately connected it to the Wisdom Rune.

There must be an important connection between the two, which led to resonance, and the Devil’s Book fell out of the box.

Casio took a deep breath and looked at the Wisdom Rune on his chest again. Luckily, there weren’t any strange changes.

He pulled his clothes back down.

He examined the legendary Devil’s Book in his hand.

It was a book with a black hardcover, extremely smooth to touch, the hardcover material was like an animal’s carapace.

On the surface of the Devil’s Book, a grotesque skull logo was vividly engraved, seeming to showcase the evil contained within the book.