On the way, Yao Xun asked Yao Qiong to kill the steward in the Medicine Treasure Pavilion, and soon Yao Qiong came back and told Yao Xun: "Grandpa, when I arrived at the Medicine Treasure Pavilion, the steward was no longer in the Medicine Treasure Pavilion, I searched around, but I didn't see anyone else, did I know something bad, so I had fled?"

Yao Xun thought about it and said, "Let's go, Qiong'er, you go out and find Yao Lao and your cousin Tianji, they haven't returned home since they left the Medicine King Valley."

Yao Qiong was about to go out to look for it, when she saw Yao Tianji coming back, she walked into the house and said, "Don't look for it, I'm back."

Yao Xun saw that Yao Tianji was back, and Yao asked, "Tianji, why did you come back alone, where is your grandfather?"

Yao Tianji said: "Don't worry about my grandfather, my grandfather has already left Yaocheng and returned to the imperial capital, he said that the matter here has been done, and he needs to go back."

Yao Xun originally wanted Yao Wuji to stay here for a while longer, so that he and Yao Qiong could behave more in front of him, which would also be conducive to the development of the Yao family in the future, but now he is only a branch of the Yao family, and he doesn't even have the right to enter the Yao family's master's house, but since Yao Wuji is leaving, he can't stop it.

On the other side, Huang Tianyu escorted the steward all the way to the outside of the city, and after a distance from the medicine city, Huang Tianyu said: "Senior, because of our affairs, now you are implicated, I'm very sorry, this is what my master asked me to hand over to you."

The old man opened the thing and saw that there was a pill lying quietly inside, looking at this pill, the complaint in the old man's heart was swept away, because the value of this pill far exceeded the value of his stay in the Medicine Treasure Pavilion.

Now seeing this elixir, not only do I no longer complain about Yi Zhongtian, but also respect Yi Zhongtian more, in this world, the weak eat the strong, although this matter started because of Yi Zhongtian, but Yi Zhongtian can completely ignore him, after all, the weak is an ant.

Now Yi Zhongtian not only let himself escape in advance, but also gave himself a pill, the old man knew very well in his heart that this was the compensation given to him by the medicine king, it was enough to have this heart, the old man said: "Little brother Huang, go back and take me to thank the medicine king, this love, I must remember."

Huang Tianyu returned to the Valley of the Medicine King, Yi Zhongtian was sitting in the courtyard, seeing that Huang Tianyu was back, Yi Zhongtian asked, "Are they all sent out of the city?"

Huang Tianyu nodded and said, "Master, today's formation is still a bit big, fortunately, Master, you have prepared in advance, otherwise the deep sea cold spring will really be returned."

Yi Zhongtian said with a smile: "Haha, will I make a loss-making deal? When it comes to the things in my hand, he still wants to take them back, but there is no door."

"Master, you said before that the Deep Sea Cold Spring is used to refine the heart source of fire, you don't plan to let me refine the heart source of fire with my current strength, right?"

Yi Zhongtian nodded undeniably and said, "What's the matter?"

Huang Tianyu retorted: "How is it possible, I'm not afraid, I'm worried that if the refining is not successful, will I waste that Fire Heart Source?" You said it, the Fire Heart Source can be found but not sought, if it is wasted, it will be difficult to find it again in the future."

Hearing Huang Tianyu's words, Yi Zhongtian couldn't help but be a little worried.

"Tianyu, you must remember, in the future, whether you are on the path of the pharmacist or the path of martial arts, don't be afraid, try boldly, if you don't try because you are afraid of waste, then you will lose a lot, it is not that you know that there is a result to do it, but that you will have results if you work hard."

This sentence went to Huang Tianyu's heart, Huang Tianyu always suffered from gains and losses in the past, and Yi Zhongtian broke it today.

"Master, I remember, if you care too much about gains and losses, you will definitely not be able to go far in the martial arts."

Yi Zhongtian nodded with satisfaction, some people can understand it at all, while some people won't understand it anymore.

"Tianyu, then you prepare, we will go to the place you said tomorrow to refine the source of the fire heart, and refining it early is very beneficial for you to be a martial artist or a pharmacist."

The next day, Yi Zhongtian and the four of them left the Medicine King Valley, followed Huang Tianyu and set off, going to the place where Huang Tianyu found the source of the fire heart, and the four of them walked all the way for more than a day before they came to the waterhole that Huang Tianyu had discovered before.

Huang Tianyu said: "Master, here, this is the place I discovered when I was cultivating before, and it is also the place where I discovered the source of the heart of fire."

Zhang Ruohan looked around and said, "Brother Tianyu, it turns out that you stayed in this place the year you disappeared, it turns out that Sister Qianqian and I didn't find you after so much effort."

Huang Tianyu said with a smile: "This was an accident, I chose to be here at that time, and it was also because I was afraid that I would worry about my life when I returned to Yanyun City, so I concealed the eldest lady."

"Have you noticed any difference here?", Huang Tianyu asked.

Zhang Ruohan and Lingzi shook their heads, Yi Zhongtian stared at the pool and said: "On the surface, there is nothing special here, but if you are sensitive enough, you can find that there is a difference in temperature between the north and south here, especially the water in this pool, could it be that the place you said is at the bottom of this pool?"

Yi Zhongtian's words made Huang Tianyu have to be convinced, and said: "The master is the master, as soon as you say it, the source of the heart of fire is indeed at the bottom of this pool, dive down from here, there will be a cave leading to the bottom of the pool to the south of the pool, and the source of the heart of fire is in that cave."

When they knew the exact place, Huang Tianyu and the other four easily entered the underground cave, and after arriving, Huang Tianyu led the way in front and led them all the way inside.

Lingzi said: "The further you go inside, the higher the temperature gets, in this environment, there is indeed a great chance that there is a fire heart source, this kind of place can be discovered by your kid, amazing."

After walking for a long time, he came to the place where Huang Tianyu had discovered before, Yi Zhongtian saw the source of the heart of fire at a glance, Yi Zhongtian is also a pharmacist, and he has a deep study of the source of the heart of fire.

Yi Zhongtian stared at the source of the heart of the fire and muttered: "The whole body is as red as magma, there is only a wisp of orange flame above the flame, there is no other variegated color, this must be the source of the earth fire heart."

Huang Tianyu asked, "Master, do you mean that this Fire Heart Source is the Earth Fire Heart Source?"

Yi Zhongtian nodded affirmatively: "That's right, this must be the Earth Fire Heart Source, which is a relatively weak Fire Heart Source, so it's the best."

Zhang Ruohan was puzzled: "Senior Yi, listening to what you said, isn't the stronger this Fire Heart Source is, the better?

Yi Zhongtian said with a smile: "With the strength of your Tianyu brother's current martial soul Yizhongtian, this weaker Earth Fire Heart Source can only be reluctantly refined with the assistance of external forces, if it is a little stronger, your Tianyu brother will definitely turn into ashes."

Yi Zhongtian suddenly remembered something, and asked Huang Tianyu: "Yes, I remember one thing, did you break through to the Martial Soul Realm here before?"

"Yes, master, is there something wrong with this?"

Yi Zhongtian shook his head and said: "There is no problem, it's just that when I learned that you broke through to the Martial Soul Realm, you said that you didn't have a thunderstorm, if you broke through here, it would be normal."

Lingzi had an idea and said: "The reason why he didn't have a thunder tribulation when he broke through to the realm of martial souls is because there is an earth fire heart source here, and the power of the thunder tribulation is suppressed by the power of the earth fire heart source, so it didn't happen?"

"Yes, between heaven and earth, all things are mutually reinforcing, and when the thunder tribulation encounters a stronger force, it may disappear, which is also very normal, but this is also because the thunder tribulation that breaks through the martial soul realm is less powerful and does not appear, if it is a higher-level thunder tribulation, the earth fire heart source can't resist it."

Huang Tianyu asked, "Master, does this thunder tribulation usually appear when it breaks through the great realm?"

"That's definitely not, in fact, the martial arts realm can't be regarded as entering cultivation, it's like strengthening the body, but when you reach the martial soul realm, you are going against the sky, borrowing the power of heaven and earth, so as long as you reach the martial soul realm, every breakthrough will bring thunder tribulation."