Chapter 177: Chapter 136: The Underworld River, Swallowing Instinct

A hundred meters below the sea surface.

The thirty-one meter long Single-horned Tiger Whale, covered in thick black and white armor, swam quickly. With each swing of its gigantic body, it stirred up strong currents.

Alongside it was a ferocious Unique Beast covered in black-red scaled armor.

Compared to the colossal Single-horned Tiger Whale, the Sword Armor Flame Beast was not only shorter but also less thick and heavy. However, the invisible oppressive aura that it emitted was no less than the whale's.

Rather, compared to the Single-horned Tiger Whale, which usually preyed on ordinary mutated creatures, the Sword Armor Flame Beast, which specialized in hunting creatures of its own size or even larger, was even more ferocious.

Over a long period of hunting, an intangible vicious aura gradually accumulated around it.

Once this invisible aura was released, it would instantly scare away the surrounding fish, making the tails of ordinary Mutated Fish go soft and motionless.