Su Yi quickly looked forward and saw that the demon jumped off the back of the ancient dragon in the center of the earth and flew away in one direction at a high speed.

This situation probably happened because the demons wanted to retreat after realizing they could not defeat the ancient dragon from the center of the earth.

Because if they continue to fight, once their spiritual energy is exhausted, they will be killed by the ancient dragon from the center of the earth.

It can be said that the demon’s choice was very correct.

Wind-type spiritual practitioners are known for their speed. After the demon landed, he ran as fast as he could and ran more than ten meters in a flash.

Just when Su Yi and others thought that the demon was going to run away, they saw the ancient dragon in the center of the earth stretching its neck and roaring at the demon.

Suddenly, a thick beam of fiery red light spurted out from the mouth, giving people the feeling that magma was erupting.

The fiery red beam rolled forward, and wherever it passed, everything turned into ashes, as if even the air was burning.

Moreover, his speed was as fast as lightning, and he caught up with the demon in an instant.

It was too late for the demon to dodge, so he could only bite the bullet and use his giant axe to block.

"ah!"

A scream suddenly pierced the sky.

But after the demon was submerged in the red beam of light, his entire body quickly turned into charcoal and died on the spot.

The huge axe in his hand was also full of holes from the burns, almost becoming a pile of scrap metal.

“This is too amazing!”

Looking at the scene before them, Cao Qinglang and others were frightened pale.

The ancient dragon from the earth's core killed a fourth-level demon in the Soul Gathering Realm with one strike, and its powerful strength caused them a strong psychological shock.

"It's actually the dual spirits of fire and earth!"

Su Yi was also quite surprised.

Before, when he saw the Ancient Dragon at the Center of the Earth releasing earth spiritual energy, he thought that the Ancient Dragon at the Center of the Earth was just an earth-type monster.

Who would have expected that the next attack from the ancient earth dragon would use fire aura, and it was extremely powerful and violent.

Su Yi weighed it up and felt that even if he used [Melting Golden Body], he might not be able to withstand it.

In this way, it is almost impossible to subdue the ancient dragon of the earth's core.

Because he couldn't defeat the ancient dragon from the center of the earth at all.

But he was still unwilling to give up just like that. At least he had to touch it and extract the ability first.

When Su Yi was thinking of a solution, Jiang Haoran reminded him: "Su Yi, let's retreat quickly."

The ancient dragon at the center of the earth is too terrifying, and it is now in a period of rage. Once discovered, it might be killed.

Su Yi pondered for a moment and asked, "Brother Zhang, isn't the Earth Core Ancient Dragon's Fire Element Cultivation at the fourth level of the Soul Gathering Realm?"

The flame beam that the ancient dragon from the earth's core just spewed out was so powerful that it instantly killed a demon at the fourth level of the Soul Gathering Realm.

He also wondered whether the ancient dragon's fire cultivation had advanced to the fifth level of the Soul Gathering Realm or above.

If this is really the case, the only thing you can do is run away.

"It should be the fourth level of the Soul Gathering Realm. The reason why that flame beam is so powerful is that it must have used some kind of innate magical power." Zhang Canyang explained.

Su Yi's eyes lit up, and he asked, "Can the innate magical power be used continuously?"

What he feared most was the flame beam. If the Ancient Earth Dragon could not use it in a short period of time, there would be no problem in fighting against it.

"A magical power this powerful cannot be used continuously."

After Zhang Canyang finished speaking, his expression changed slightly, and he asked tentatively: "Junior Brother Su, you are not going to do anything else, are you?"

"Um"

Su Yi nodded.