Martial Soul Evolution

Green flames scorched the entire swamp.

Countless soul beasts began to howl in agony.

Some weaker soul beasts died on the spot, their Soul Rings leaving their bodies.

At that moment, Dugu Feng noticed that the power of some Soul Rings was inexplicably being siphoned away.

Seeing this, Dugu Feng hurriedly pulled out a book. He had obtained this ancient text from Heaven Dou Royal Academy, and it recorded information about certain frog-type soul beasts.

However, some of its contents were fabricated while others were genuine, making truth difficult to distinguish from falsehood. It had therefore been dismissed as a miscellaneous book.

Since Dugu Feng's martial soul was frog-type, he paid particular attention to such books and carried this one with him.

It recorded a special type of frog soul beast known as the Nether Ghost Frog.

This frog-type soul beast was exceedingly rare. It was said to be a mutated frog soul beast that could only be born in places where great numbers of soul beasts had died, feeding on the remains of soul beasts.

Only places where countless soul beasts had perished could possibly give birth to a Nether Ghost Frog.

Nether Ghost Frogs were timid by nature and generally would not appear before soul beasts or human soul masters. They were also exceptionally good at hiding and favored cold, gloomy places.

A swamp like this was precisely the sort of place a Nether Ghost Frog loved to hide.

"Could it really be a Nether Ghost Frog? At first, I thought it was just some fabricated soul beast. I never expected such a soul beast to truly exist. Nether Ghost Frogs are said to be born after a certain frog species dies, driven by immense resentment, along with other soul beasts dying nearby."

"That must be how it came into existence. It can even devour the Soul Rings of dead soul beasts. There must have been a large number of dead Rock Frogs in that valley, which lured it there."

"It happened to be drawn by the powerful medicinal scent emitted by the Lingzhi, so it stole it. But this thing is seriously gutsy!"

"It actually dared to snatch something right under the nose of a Hundred Thousand Year Soul Beast."

By now, the Poison Fiend Wyvern had exhausted all his patience. He flew to the highest point and opened his enormous maw.

Dark green energy gathered in his mouth as he prepared to destroy the entire swamp in one blow.

Seeing this, Dugu Feng hurriedly retreated, keeping as far away as possible.

The next second, a green pillar of light blasted directly into the swamp.

Violent energy exploded in an instant.

The entire swamp was blasted into a bottomless crater.

Under the Poison Fiend Wyvern's fierce assault, the Nether Ghost Frog was finally forced out.

The Nether Ghost Frog was now terrified and began fleeing once more.

But this time, the Poison Fiend Wyvern gave him no chance to escape.

He exhaled dragon breath, directly surrounding him.

Under the burning dragon flames, the Nether Ghost Frog was finally forced to reveal his true form.

His entire body was wreathed in black mist, making his appearance impossible to discern. Only those green eyes could be seen.

It was as if soul-fire burned within those eyes.

The Nether Ghost Frog hurriedly spat out the Lingzhi he had stolen earlier.

Unfortunately, that did nothing to calm the Poison Fiend Wyvern's fury.

The Poison Fiend Wyvern swung his dragon claw, which came crashing down in an instant.

With a single blow, the Nether Ghost Frog was smashed into the mud.

The ground instantly caved in, leaving behind only a deep crater shaped like a dragon claw.

Still not satisfied after that, the Poison Fiend Wyvern opened his mouth and unleashed his ultimate technique, Poison Fiend Death Ray.

It was the green pillar of light they had seen earlier.

The Poison Fiend Death Ray struck straight at the place where the Nether Ghost Frog had been buried.

It blasted out a bottomless pit, from which corrosive poisonous gas continuously rose.

Only after doing all this did the Poison Fiend Wyvern leave with the Lingzhi.

Dugu Feng only dared approach after confirming that the Poison Fiend Wyvern had left.

Unexpectedly, clusters of black ghostly energy began to gather again, reforming into the Nether Ghost Frog.

However, the Nether Ghost Frog was now covered in wounds, and the ghostly energy around his body was constantly leaking away.

This proved that the Poison Fiend Wyvern's attacks had left him with little time to live.

The Nether Ghost Frog's eyes were filled with sorrowful pleading.

The moment Dugu Feng drew near, his martial soul felt a resonance.

The Ice Fire Toad King martial soul began undergoing Martial Soul Possession of its own accord.

Dugu Feng had never allowed his martial soul to fully possess him. Once it did, his belly began to swell.

His originally slender body began to grow fat, turning him from a skinny man into a fat man.

His eyes became frog-like pupils, one blue and one red.

Black markings also appeared across his body. In a word, he looked ugly.

That was why he had never been willing to undergo complete Martial Soul Possession. Usually, he only allowed his martial soul's phantom to manifest behind him.

He did everything he could to avoid complete Martial Soul Possession.

Complete Martial Soul Possession could greatly enhance his jumping ability.

But the appearance was simply too ugly for him to accept.

Yet because of the Nether Ghost Frog, his martial soul began possessing him unconsciously.

Croak... Croak... Croak!

The Nether Ghost Frog let out several croaks, but strangely enough, Dugu Feng could understand them.

"You mean you're willing to give me your power, and the price is that I avenge you!"

The Nether Ghost Frog nodded.

"Fine. I swear upon my martial soul that I will avenge you."

After hearing Dugu Feng's reply, the Nether Ghost Frog closed his eyes peacefully. The next second, his body gradually began to dissipate.

He transformed into an incomparably black Ten Thousand Year Soul Ring, which slowly merged into Dugu Feng's body. There was no so-called spiritual shock, because the Nether Ghost Frog was practically sacrificing himself to give all his power to Dugu Feng.

The remnant soul of the Nether Ghost Frog began merging into Dugu Feng's martial soul.

Dugu Feng immediately sat cross-legged and began fusing with it. He was not worried about soul beasts disturbing him, because there were no living creatures left in this area.

The nether energy produced by countless dead soul beasts also began pouring into Dugu Feng's body.

It increased the age of the Nether Ghost Frog.

This fusion continued for quite some time.

A full two hours later, Dugu Feng opened his eyes. His Ice Fire Toad King had mutated after fusing with the Nether Ghost Frog's martial soul.

The Ice Fire Toad King's previously hidden devouring attribute had been completely awakened.

Originally, the Ice Fire Toad King could only devour Soul Power containing poisonous elements. Now, his devouring ability no longer had such limitations and could directly devour the Soul Power of others.

However, there was one kind of Soul Power it could not devour: Soul Power with a light attribute, such as an angel martial soul.

After absorbing the Nether Ghost Frog's Soul Ring, his Ice Fire Toad King martial soul had evolved into the Ice Fire Nether Toad Emperor.

His Ice Fire Nether Toad Emperor martial soul could now exert an extremely powerful suppressive effect on frog-type martial souls.

Dugu Feng opened his eyes, a trace of nether energy appearing between his brows.

"I never expected most of the medicinal power inside that Lingzhi to have been absorbed by the Nether Ghost Frog. What a pity it had not had time to refine it. It ended up benefiting me instead."

"Only thirty to forty percent of the medicinal power in that Lingzhi should remain. If that Poison Fiend Wyvern finds out, he will probably fly into a rage. I shouldn't stay here any longer."

Dugu Feng looked at his left foot.

During this long fusion, he had not merely fused with a Soul Ring. He had also fused with a Spirit Bone. This Spirit Bone came from the Nether Ghost Frog, and its soul skill was Nether Stealth.

It allowed the user to become like a shadow and escape.

At the same time, it granted immunity to a certain amount of physical damage.

However, using this move consumed an enormous amount of Soul Power. Even so, it was undoubtedly a top-tier life-preserving technique.

Dugu Feng sensed his current Soul Power.

Level 59!

Three levels of Soul Power had been provided by the Nether Ghost Frog itself, while the remaining six levels came from the unrefined medicinal power within the Nether Ghost Frog.

"The power of that Immortal Herb is truly astonishing. I just wonder what kind of Immortal Herb it was to possess such incredible power."