Boom!

When the small flame came into contact with the purple smoke, it was like finding oil, exploding and blazing uncontrollably all over the smoke.

Xi! Xi! Xi!

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It made a sound like wet plastic being burned, and produced an extremely dense yet non-toxic black smoke.

Because the fire was above, it looked like it was a sea of flying flames, a dazzling sight.

Curious as to who the owner of the fire was, people also kept glancing left and right, including Isabel, looking for the owner of the golden flame.

However, even though Isabel continued to observe the surroundings, she still did not find Oliver's figure who was far away from her plus her view was blocked by several people.

In a short time, all the purple smoke that made everyone retreat was gone, burned by the golden flames.

Oliver smiled again, starting to think about attacking the main body of the big tree.

Shua! Shua! Shua!

Suddenly the tree let out another set of roots from under the ground.

The difference was that there were no flowers on them as they had sharp edges, moving quickly towards the people on top of the city wall.

"Shit!" They instantly panicked, not expecting that the tree would still continue to attack.

And this was rather frightening to them because of how fast those roots were. If they jumped, the roots would probably still chase after them.

One by one, the people with defense skills pointed their hands forward, releasing various elements that formed a wall, either a concrete or earth wall.

However, the wall they created turned out to be quite small, only enough to protect themselves and a few of their friends.

Their average skill was indeed low-grade. This was also because most people preferred the skill to attack.

In the end, Oliver had to release his fire again secretly.

From a small beam of fire, it turned into a sea of fire that instantly burned the roots at such a ridiculous speed that their dust filled the air.

This time, the fire didn't disappear immediately, it continued to rage in the air, and even seemed to get bigger.

Aaaazzzzz!

The beautiful yet majestic sound of a bird's cry echoed from within the flames, stirring the hearts of those who heard it.

I don't know what was in there, but it seemed that the fire was about to transform into something impressive.

Xiu!

And suddenly, it shrank at an unimaginable speed until it formed a sword.

Oliver could basically shape anything with that flame according to his will. This time, it just so happened that he wanted to see it become a sword.

Whooss!

The flame sword shot towards the huge tree at high speed, piercing through the roots that tried to block it.

In no time, it dug into the tree's chest until it was almost completely submerged.

The tree only seemed to be amused at being pierced by the flaming sword.

Its eyes stared down, right at its chest, even looking curious.

"Let's see if you can survive or will become ashes," Oliver said in a low voice that only he could hear.

Click!

He then snapped his fingers.

To him, since this monster was so vulnerable to his golden flames, it was better to kill it quickly. That way, he would gain a large amount of EXP and points.

After that, he could go to try to kill the other Monster Bosses.

If he could kill all four, then it would be quite extraordinary.

Boom!

The sword exploded, releasing golden flames that instantly engulfed the entire tree.

The light was so bright that it could be seen from all over the city, making people think that the sun had suddenly risen from the north.

"Akkkhhhhhh..." A loud scream echoed from within the flames, sounding very guttural, similar to the sound of rusted metal rubbing together.

Occasionally, there were roots that came out of the flames but were then cut off as their lower parts were burnt to ashes.

If normally monsters immersed in the golden flames only screamed for a short while as they were instantly reduced to ashes, this time it was not the case. The tree monster's screams continued to echo endlessly, showing that it was regenerating endlessly. Perhaps its body can regenerate longer than its hands.

Of course, it's terrible if you can't escape the flames. Instead, you will continue to feel the pain of being burned endlessly.

Even though they knew it was a monster in the fire, people were still horrified.

It's like watching torture.

"Whoever it is, please stop this." Suddenly there was a woman shouting in horror, almost making Oliver stagger.

The woman was standing next to Isabel, wearing large round glasses.

Whether she was beautiful or not was something hard to say. She looked more like a neet despite having her hair in a ponytail.

Of course, she wasn't a pathetic neet because from head to toe she was wearing an expensive branded outfit.

When Oliver started looking at her, she started crying.

Isabel who was standing beside her didn't seem to know whether to laugh or cry.

Because of her crying, she somehow also started to feel sorry for the tree monster, which did give a pitiful impression in this situation because it lacked the ability to move.

Oliver naturally didn't stop just because some people felt sorry for the tree.

It was just that, he couldn't help but knit his brows because more than three minutes had passed, the tree monster was still screaming.

He waited and minute after minute began to pass.

'Can't this monster die?' He wondered.

In the end, even after ten minutes, the monster's screams still echoed.

Curious, he finally decided to remove the golden flame, wanting to see what happened.

Whoosh!

The golden flame disappeared in an instant with just a thought.

The other people who didn't know that it would disappear were astonished, then astonished again at what they saw afterwards behind the golden flames.

There, there was dust that had accumulated into a small hill.

Right on top of it, there was something like a heart but it seemed to be made of wood.

It was beating relentlessly.

And the screams echoed from that heart.

When the golden flames disappeared, the heart suddenly grew new roots.

However, the roots that grew were very small, seemingly unable to grow any bigger.

"What is this?" People wondered.

DING!

(The heart of the Primordial Sky Tree, an extremely rare item in the entire universe due to the rarity of the Primordial Sky Tree itself. If you destroyed the heart, it was like you killed the Primordial Sky Tree. However, the heart has many functions if you use it in other ways but it will make you not gain EXP and points like you kill other monsters. You can find out more information on your own).

The notice appeared before Oliver's eyes and should have been before the eyes of everyone who saw the heart.

Instantly, their expressions all turned serious.