Under the influence of deep-sea energy, the energy within Oldman's body began to slowly resonate with it.

His body hair became increasingly shiny and turned white rapidly at a visible speed, as if covered with a layer of frost.

"Ugh..." Oldman's muscles tensed, and he unleashed the power of the Holy See's origin, his claws slamming into the teleportation array.

The teleportation array trembled violently under Odman's full-force activation, its red light flashing intensely, and the runes rising and falling.

The cold, dark aura of the deep sea, transmitted through the teleportation array, quickly enveloped the entire battlefield like a surging tide.

The soul seemed frozen, and everyone could feel a fear from the deep sea.

"Open!" Oldman shouted, and the portal opened again.

Not only seawater from the deep sea, but also a continuous stream of deep-sea energy surged from the teleportation array and rushed into the sea beast's body.

After receiving the boost from deep-sea energy, a glint flashed in the sea beast's eyes, revealing an intelligence that surpassed that of other beasts.

From that moment on, it seemed to have become the master of this battlefield.

"Aww—"

The sea monster suddenly opened its huge mouth and let out a roar that was completely different from before!

This roar is no longer a simple howl, but a buzzing sound from the deepest part of the sea!

Strange things happened.

"Awooo... Awooo... Awooo..."

Although the sea monster had already shut its mouth, the roar from before still echoed incessantly.

On the open plains where the Khans lived, a very strange and continuous echo was produced!

The sound pierced through the rain and penetrated deep into the ear canals of every soldier!

"Oh no! It's a sonic attack!"

"Quickly seal the ears and nose!"

Experienced Awakened Ones instantly turned pale and screamed a warning.

The people around were about to cover their ears, but it was too late.

Awooo—buzz!

Everyone who heard the sound froze, their eyes instantly losing focus.

Their bodies seemed to be frozen in place, motionless, even retaining their previous postures.

The sea monster's sonic attack instantly pierced everyone's eardrums, and deep-sea energy forcibly invaded their mental seas.

As the sea monster's sonic waves continued, chaos and a tremendous change occurred in everyone's mental state.

Countless fears and hallucinations entangled their consciousness like demons.

One by one, the awakened ones were as if they had suddenly fallen into the sea, and no matter how they struggled, they could only be dragged deeper and deeper by the sea monsters.

Oldman stood up with satisfaction, looking at everyone who was standing motionless, and revealed a bloodthirsty smile: "It seems that it's time for my slaughter to begin."

Faced with the sea monster's sudden indiscriminate sonic attack, the team responsible for mental defense was completely wiped out, and even Li Yu was not exempt from being hit.

No one expected that a sea monster without intelligence would possess such a wide-range mental attack ability, and with such high intensity.

After all, no one has ever seen a sea monster in person, let alone experienced the terrifying abilities it possesses.

The First Legion has already suffered a great loss on their very first encounter with the sea monster.

When Li Yu "opened her eyes" again under the sonic shock on the mental level, what she saw was not a terrifying illusion, but a vast mental sea.

A huge black eye floats leisurely on the sea of ​​consciousness, beside which floats a cicada pupa emitting a soft glow...

Everything was extremely familiar.

Li Yu suddenly came to her senses. Wasn't this her own mental sea?

Even a powerful illusion could not possibly create such a realistic mental landscape, let alone mimic the connection between him, the Nightmare Beast, and the infant spirit. This is clearly impossible.

"Aww!"

The sea monster's sonic attack, carrying deep-sea energy, directly poured into Li Yu's mental sea!

As if suddenly connected to the deep sea, icy black seawater appeared out of thin air in Li Yu's mind, cascading down like a waterfall!

"Splash—!!!"

The Nightmare Beast, which was leisurely floating and resting with its eyes closed, was suddenly jolted awake by the icy seawater!

The Nightmare Beast opened its eyes and began cursing:

"Who the hell threw cold water on me! Can't you see I'm sleeping..." Before he could finish speaking, another wave of seawater was poured over his head: "Glug glug..."

The enormous, mouthless eyes howled in the seawater, but the sounds were muffled by the water and could not be clearly heard.

"Whoosh—!"

Another massive deep-sea wave crashed into the Nightmare Beast's dark eyes.

"Gurgle... I'm eighteen times better than your ancestors... gurgle gurgle..."

Caught off guard, the Nightmare Beast tumbled and struggled amidst the sudden "tsunami."

His black eyeballs were swollen and disoriented, and angry curses mingled with the bubbles as they continued to emerge:

"You better not let me see you again! *glug*... I'll gouge your eyes out... *glug*..."

Li Yu reacted quickly, fearing that the inexplicable waves would wash away the infant spirit, so she hurriedly stepped forward and hugged the cicada pupa, using her extremely powerful spiritual energy to directly envelop herself and the cicada pupa.

As for the Nightmare Beast in front of him, which was being battered by the waves and was constantly thrashing and cursing, Li Yu was not worried at all.

He couldn't believe that the Nightmare Beast, which always claimed to be the nemesis of mental attacks, could be injured by such a level of mental attack.

"Roar—" The sea monster used mental attacks from the deep sea to maintain a complete and continuous suppression of everyone present.

Its spiritual power is like a giant net, encompassing all living things within the reach of its sound.

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