"No wonder the Red Feather Phoenix Clan will rest assured that I am cultivating in it myself, the power of this Heart Fire Crystal Spirit really can't be absorbed infinitely......"

After absorbing a piece of heart fire crystal to colorlessness, Wang Sanniu began to feel that his heart, which had been tempered by heart fire, was no longer as painful as it was at the beginning. It's not that he's used to this kind of pressure and has become numb, it's that the flame spiritual power in his body that can be calcined by the heart fire is getting less and less.

The reason why the heart fire can induce angina pectoris is because there is an ability to quench the flames in the cultivator's body in this heart fire crystal. Once the flame in the cultivator's body is completely refined, that feeling of heartache will no longer exist, and it will be meaningless for the cultivator's ascension.

At this time, Wang Sanniu had been under this altar for a day and a night, and the heart fire crystals he had refined were already close to a hundred. He could feel that his current spiritual power was getting closer and closer to a breakthrough. Of course, the most obvious improvement is in the improvement of the quality of the flame.

Wang Sanniu was born with an eighth-level flame attribute, and later in the Zhongzhou Empire, with the help of the power of the Soul Purple Grass, the flame attribute was raised to the ninth-level. However, the kind of attribute improvement driven by soul power is not perfect after all, so the current Wang Sanniu has to rely on the tempering of the heart fire crystal to make his ninth-level fire attribute reach the point of perfection.

Although the refining effect of the Heart Fire Crystal was effective for all Yang Fire attribute cultivators, the effect was naturally different for people of different flame levels. Taking the Divine Desperate Realm as an example, if it was a sixth-level flame attribute cultivator, maybe ten Heart Fire Crystals would be enough, but a ninth-level Fire Attribute cultivator like Wang Sanniu, even if there were hundreds of Heart Fire Crystals, it would be difficult to completely refine them.

After another day of tempering, and when he absorbed another piece of heart fire crystal, Wang Sanniu couldn't feel the pain in his heart at all.

"Doesn't it work?"

Feeling that the refining effect of the Heart Fire Crystal on his flame spiritual power was gradually weakening, Wang Sanniu couldn't help but feel a little lost. The threshold of Sanqingjing seems to be in front of him, and the distance to break through is just a matter of stepping in the door. However, it was this kick that made it difficult for Wang Sanniu to kick out.

"Sanniu, if you feel that your strength is not enough, you can continue to go deep into the ground. In my location, there is a heart fire crystal specially reserved for the masters of the Three Qingjing Realm! ”

Just when I Wang Sanniu was entangled, the voice from Bi Fangniao made Wang Sanniu's eyes light up. So, he also dived directly down, chasing the breath of Bifang Bird.

At first, Wang Sanniu didn't feel any changes, but after about a moment of diving into a stick of incense, he felt that the temperature around him had risen several times compared to before! Even if he possessed a ninth-level fire attribute and had obtained a quenching body cultivation, it was difficult for him to withstand the scorching sensation here!

Enduring the scorching heat of the surrounding environment, Wang Sanniu carefully found a piece of heart fire crystal. Compared to the ones I'd seen before, the Flame Crystal here was much smaller, only the size of a coin. However, their color is not that light red, but a slightly mottled crimson.

"That's enough to taste!"

Looking at the heart fire spirit in front of him, Wang Sanniu pursed his lips and carefully pointed his finger on the heart fire spirit. He was sure that the Heart Fire Crystal here would definitely be able to elevate him to the Three Clearings Realm!

"Ah!!h

As soon as his finger lit the heart fire crystal, Wang Sanniu let out a heart-rending howl. Even if he had been prepared in his heart, he was caught off guard by the pain caused by this heart fire crystal. This time, it was not just the pain in his heart, his entire body was trembling because of the severe pain.

"If you can't stand it, don't force it, after all, this is the exclusive cultivation place for cultivators of the Three Qings Realm, if you can't do it, there's no need to forcibly endure it! Otherwise, once your body is traumatized, I can't save you in this kind of place! ”

Bi Fangniao had already returned to Wang Sanniu's side at this time, and said to him in a warning tone. In this place where the power of flames is so terrifying, once Wang Sanniu's body is damaged, it will be difficult to recover and leave.

"It's painful...... It's not a ......."

Wang Sanniu's voice was already trembling, but he still gritted his teeth and smiled. The physical pain didn't seem to be able to defeat him, in his eyes, only the improvement of strength and the sublimation of flame attributes.

After carrying the initial stage, the pain suffered by Wang Sanniu finally gradually calmed down, and the power in his heart was also inhaled into his body like a cocoon. And his spiritual power is also growing at a speed that is visible to the naked eye......

……

"Wang Sanniu has been gone for seven days, why hasn't there been any movement? He's not going to live there, is he? ”

In order to better wait for the end of Wang Sanniu's cultivation, the people who lived temporarily in the Red Feather Phoenix Clan arranged a room very close to the back mountain for them. Here, they could clearly see the entrance to the cave and the four guardians of the entrance. However, after waiting for Wang Sanniu for seven days, they finally couldn't bear it anymore.

During this period of time, everyone had also asked the people of the Red Feather Phoenix clan that according to their understanding, cultivating in the so-called "secret altar" could lead to the burning pain of the heart, which would lead to a madness or even direct death.

The ordinary Divine Desperate Red Feather Phoenix would not be able to cultivate in it for more than three days, and according to experience, the longer it stays inside, the more likely it is that something will happen......

"Brother Sanniu may have taken this opportunity to break through directly, so they stayed inside for a long time. Since it's useless to worry about it, let's still believe him......" Xuanyuan is very confident in Wang Sanniu.

"You talk about Wang Sanniu, and I'm not worried at all about throwing Molly, who just held her hand, here. You see, the little guy has been standing by the window for three days and three nights without closing his eyes, looking at the back mountain. If something happens to him, Molly won't go crazy......"

Pointing to Molly looking out of the window, Zimeng couldn't help but pout, obviously a little unbearable. Even if it is a cultivator of the Shangqing Realm, the spirit of not sleeping for a long time is unbearable, not to mention, Molly is still a little girl who is only twenty years old......

Just when everyone was holding their own opinions and talking about Wang Sanniu, there was finally movement on the back mountain of the Red Feather Phoenix clan.

"Boom!"

With a sound like the sky and the earth cracking, the cave where the secret altar was located almost collapsed. Thankfully, the four Guardians used their spiritual power to stabilize the cave without causing that effect.

"Master Sanniu!"

Just when everyone was puzzled, Molly suddenly screamed, directly turned into the body of the jade phoenix, and flew towards the cave.