Fengyun stared at the feathers wrapped in flames, appearing very focused, without blinking his eyes, as if he was worried that he would miss something.

He did worry that he would miss some important details.

His use of fire to burn the feathers of the sword-billed bird was not a random occurrence, but the result of consideration.

He found it in a very different state from any bird he'd seen before, giving it the impression that it was more mechanical than flesh and blood.

Especially after he examined the spikes, especially after confirming the changes that occurred in their bodies after death, an idea gradually sprouted in his mind.

The reason why the body of the knife-billed bird is so different from other birds is that it is too high in metals.

According to what he had learned in the world before he traveled through time, animals had metal elements in their bodies, and birds were no exception.

It's just that under normal circumstances, these metal elements are traceable, accounting for a very small proportion of the body, once exceeded, not only is it not beneficial, but harmful, and it is completely possible to cause death.

In this case, it is difficult, even impossible, for him to find metal in the body of the knife-billed bird, but the knife-billed bird is very special, not only did it not survive in the world before he crossed, but it did not survive in the world after he crossed, it came from a completely new world.

It makes sense that creatures living in different worlds will have different differences.

In other words, if Fengyun did burn the feathers of the sword-billed bird, he might be able to get the metal.

The feathers of the sword-billed bird were indeed different, and after coming into contact with the flames that Fengyun transformed with the power of the totem, it was not immediately ignited, and even after about half a minute, it did not change significantly.

It wasn't until Fengyun brought the flame closer to the feather that its surface began to scorch black, and as for the main part, he used more totemic power to raise the temperature greatly before it was incinerated.

It's a pity that Fengyun didn't get the metal he wanted.

However, he did not find nothing, as the ashes left over from the burning of his feathers fell to the ground, and a white light appeared in the flames made by the power of the totem.

It was small, not much thicker than a strand of hair, but looking at it, Fengyun felt a tingling sensation in his eyes, like a needle pricking his eyes.

"What is this?"

Fengyun subconsciously narrowed his eyes, reducing the damage of the white light to his eyes, and at the same time paying more attention to it.

However, this is the first time he has seen such a thing, and he can only rely on himself to explore its characteristics.

It was difficult to make any major progress in a short period of time, he only knew that it had something to do with metal, and it was extremely sharp, even if he didn't touch it, as long as he approached it within a certain range, it could cause damage.

With Fengyun's strong defense, when his fingers actually touched it, the skin on his fingertips was broken and blood flowed.

Feng Yun was taken aback by this, he didn't expect that this white light that he had extracted from the feathers of the sword-billed bird would be so terrifying.

He has a clear understanding of his own defense, and his own efforts and special abilities make his defense far superior to that of totem warriors of the same level, and even brute beasts that have always had rough skin and thick flesh are difficult to compare with him.

This time, it was shattered by a white light, and he didn't even feel it before its fingers were sliced open.

Fengyun hurriedly removed the bleeding finger from the white light, and the eyes that looked at it narrowed into two narrow slits.

While he was shocked by its destructive power, there was also a slight fluctuation in his heart, and he actually developed a longing for it and wanted to take it for himself.

"Huh?"

Fengyun felt the reaction of his body and was very surprised, after all, the white light had just broken his finger, and if it was taken into his body, it would definitely not cause him much damage.

The skin plays a protective role for people, so its strength is higher than that of other body tissues under its protection, and the skin cannot resist its damage, let alone other body tissues.

In other words, as soon as it enters his body, his body will inevitably be harmed.

This is in contrast to the original performance of the body.

In the past, whenever there was danger, even if Fengyun didn't notice it himself, it would actively alert Fengyun and ask him to take action to prevent it from being harmed.

In other words, it has taken self-preservation as its first criterion, and now it has violated this criterion and even gone to the other extreme.

It is not surprising that the wind and rain will be surprised.

However, he still decided to figure out the situation, but the gains were not large, until the exercises he created began to run on his own.

"Could it be that this time it's not the body that wants to get the white light, but the exercises?"

Fengyun felt a little incredible, but after taking a closer look, he began to think that his guess might be correct.

He vaguely felt that the exercises he had created revealed a longing, a desire to make up for the incomplete.

He thought about it for a moment and found that the exercises he had created were indeed incomplete, and then he found that the parts he had created happened to have some kind of consistency with the five elements.

The five elements are gold, wood, water, fire, and earth, and he now has water, fire, and earth, the water comes from the Shuangcold Spring, the fire comes from the original attributes of the totem, and the earth comes from the stone pillar he found in the Ecstasy Cave.

Now what he lacks are two kinds of gold and wood, and if he completes it, he can reach the perfection of the five elements.

If the feathers of the sword-billed bird from his refining belonged to the gold of the five elements, everything would be reasonable.

Thinking of this, Fengyun suddenly took out the corpse of a spike worm, and then incinerated it, and finally got a white light, which was obviously much thicker than the white light he obtained from refining feathers.

Looking at the two white lights suspended in front of him, Fengyun showed a thoughtful expression, as if he had thought of something.

Suddenly, he raised his head, looked at the hole in the space, and then showed an expression of eagerness, as if he wanted to enter the world behind him.

Feng Yun did want to go to the world behind the hole, because he felt that if he did, he would be able to make new progress in his exercises and further complete it.

To go into more detail, he will hopefully complete the gold in the five elements.

It's unlikely to be a coincidence that both the knifebill and the spike come from behind the hole, and both of them contain metallic white light.

It's more likely that behind the hole there is some kind of metallic energy that is rich in gold, like the stone pillar he found in the Blue Lagoon.