I am the son of the Dragon God in Douluo Continent.

About an hour later, the sky darkened considerably for some reason, and layers of faint, colorful mist appeared before everyone's eyes.

The sunset forest looked peaceful, but the thin mist drifting through it gave one a sense of unease.

What's most eerie is that the thin mist gradually fades and disappears in the distance from where they came from, while it tends to become thicker as they continue forward.

Even from a distance, it looked like a colorful cloud that had fallen into the forest, covering everything and obscuring even the vegetation.

Xu Xingyu frowned as he looked at the thin mist in front of him. After observing it with his spiritual power, he discovered that the mist was actually miasma.

Miasma is generally a toxic gas that gradually forms from the decay of plant and animal corpses when left unattended and exposed to wind and rain.

Different types of miasma have different levels of toxicity; mild cases can cause dizziness, vomiting, and diarrhea, while severe cases can be fatal.

The colorful miasma is likely a mixture of various types of miasma, which also proves that many soul beasts and humans died when they entered the formation left by Tang San.

The toxicity of this mixed miasma is unknown, but it could be fatal. The reason why Xu Xingyu and the others haven't shown symptoms yet is simply because the current concentration of miasma is still within their bodies' tolerance range.

If we were to venture any deeper into the Sunset Forest, we would need to take protective measures, otherwise we might perish before even reaching the Ice and Fire Yin-Yang Well.

Therefore, under Xu Xingyu's instructions, Gu Yuena used the power of extreme fire to forcefully break through the surrounding miasma as she advanced.

After sensing the extreme heat and yang energy emanating from the ultimate fire, the miasma dissipated quickly, as if it had encountered its natural enemy.

Clearly, these miasmas cannot withstand the high temperatures from the flames, let alone the extreme heat from the fire.

So soon, a passage was forcibly opened by Gu Yuena's extreme fire, and the miasma that had been surrounding the core of Sunset Forest gradually dissipated.

If more time is spent clearing away the miasma, the Sunset Forest may be able to recover to its state it was 10,000 years ago.

After clearing away most of the miasma, Xu Xingyu and her group continued their journey toward the Ice and Fire Yin-Yang Well.

Of course, just in case, Gu Yuena coated everyone present with a layer of ultimate ice-attribute soul power.

After all, no one knows if there are even more terrifying poisons ahead than these miasmas. If there are, then entering the heart of Sunset Forest without any protection is tantamount to suicide!

As for why a layer of ultimate ice-attribute soul power is needed, it's because ultimate ice is the nemesis of all poisons, making it the best protective suit in such a highly toxic environment.

After an unknown amount of time, they arrived in a world filled with emerald green.

A vibrant green sheen blanketed the earth, and the seemingly haphazardly arranged emerald green plants spread outwards across vast expanses of land. A faint emerald green mist rose upwards and gradually diffused outwards.

Judging from the arrangement of these emerald green plants, they did not grow naturally here; rather, someone deliberately placed them here.

These emerald green plants are not tall, only about half a meter high, and each plant has nine oddly shaped leaves.

These leaves are somewhat like human hands, but they have seven fingers, and some of the larger ones even have nine fingers.

At their tops bloom large, emerald-green flowers. A wisp of emerald-green mist emanates from the heart of these flowers.

These mists gradually formed a turquoise poisonous cloud, which specifically surrounded a valley.

That place is very likely the destination of their trip: the Yin-Yang Well of Ice and Fire.

These emerald green plants surrounding the Yin-Yang Eye of Ice and Fire are a special plant called the Jade Scale Seven Wonders Flower.

The Seven Deadly Poisons of Phosphorus is one of the most poisonous plants in the world. Its extreme toxicity is not only due to its strong corrosive properties, earning it the title of "Number One Corrosive," but also its extremely potent neurotoxicity.

Once contaminated, not only will the body be corroded, but one will also suffer intense pain instantly.

However, this Azure Phosphorous Seven Absolute Flower is extremely rare and precious, and is the dream of almost all plant-type Soul Masters.

If a plant-type Soul Master can find a Jade Phosphorous Seven-Flaw Flower that has become a plant-type Soul Beast and fuse it into their own Soul Ring, then they will possess the Jade Phosphorous Seven-Flaw Flower's deadly poison.

Many of the Jade Scale Seven Absolute Flowers that appeared before Xu Xingyu had already become Soul Beasts, and some were even ten-thousand-year-old Soul Beasts.

Xu Xingyu could only mutter to herself, "Tang San really doesn't want anyone to enter the Ice and Fire Yin-Yang Well, so he actually set up the Seven Deadly Flowers of Azure Phosphorus here. No wonder the number of soul beasts in Sunset Forest has declined to this extent in the past ten thousand years. Faced with such terrifying poison, those soul beasts can only become nutrients for these Seven Deadly Flowers of Azure Phosphorus."

Simply put, Tang San first used the magic array he set up outside to prevent people or beasts from finding their way out, then led them to these Jade Scale Seven Deadly Flowers, where they were eventually killed by the Jade Scale Seven Deadly Flowers' deadly poison and became their nourishment.

It's like treating all the spirit beasts in the Sunset Forest as food for your own security system!

You should know that even the Star Dou Great Forest doesn't have such a large number of Jade Scale Seven Absolute Flowers, yet there are already tens of thousands of them here!

What kind of rare soul beast is this anyway?!

Just as Xu Xingyu was secretly complaining in her heart, the Azure Scale Seven Absolute Flowers seemed to sense the aura of Xu Xingyu and her group, and began to control the poisonous clouds to attack them.

Upon seeing this, Gu Yuena immediately unleashed a large blizzard containing extreme ice. The originally turbulent poisonous clouds were dispersed by the blizzard, and the Jade Scale Seven Absolute Flowers were instantly frozen into ice blocks.

Unlike the miasma before, the Jade Scale Seven Absolute Flowers are not afraid of the high temperature brought by flames; on the contrary, they are afraid of the low temperature provided by ice.

Therefore, faced with Gu Yuena's ice storm, the Jade Scale Seven Absolute Flowers were powerless to resist, watching themselves freeze into ice wither, and then watching these intruders enter the place they were guarding.

The reason they weren't killed by Gu Yuena was because she saw them as soul beasts and spared their lives.

Normally, when faced with a soul beast that dares to defy its superiors, Gu Yuena would not hesitate to deal with it on the spot.

However, considering the rarity of the Jade Scale Seven Absolute Flowers, after careful consideration, Gu Yuena decided to turn the Jade Scale Seven Absolute Flowers present into spirits, so that these guys could be bound to the Spirit Pagoda forever.

After dealing with the issue of the Jade Scale Seven Absolute Flowers, Xu Xingyu and her group finally arrived at their destination: the place where the Ice and Fire Dragon King fell, the Ice and Fire Yin-Yang Eye.