"This is the secret that my Liu family has hidden for nearly a thousand years." Liu Shang looked at Lin Feng's shocked expression and said with a wry smile.

The three bowls in front of Lin Feng contained the blood of the three members of the Liu family, Liu Zhong's blood was still bright red, Liu Jingxing's blood had begun to change to blue, and Liu Shang's blood was dark blue.

"Our Liu family, it can be said that it is an ancient martial arts family, I don't know if it is because of the blood, the bloodline of the Liu family in the past dynasties has been smooth sailing in the martial arts, all of them are talented people with wonderful roots, but all the descendants of the Liu family will begin to change to blue after the age of thirty, as you can see, old man, my blood is already dark blue, if I have been alive, maybe this blood will not be good, but if I die, this blood is a disaster for future generations." Liu Shang said, his face was full of old tears.

The blue blood in their bodies is spiritual, once they die, those blood will find the descendants of the Liu family on their own and forcibly invade their bodies, and it is precisely because of this that the blood in Liu Shang's body will be dark blue, blue and almost inky.

In fact, the ancestors of the Liu family in the past generations would leave the Liu family when the deadline was approaching, looking for various Jedi as burial places.

But their blood still returned to the Liu family without exception, invading the bloodline of the Liu family, just like the accumulation of generations, ninety percent of the blood in Liu Shang's body can be said to be not his own.

Now that he has entered the twilight, he is naturally worried that this blood will continue to pass into Liu Jingxing or Liu Zhong's body, their Liu family, and the side branches are all long-lived, but only the lineage, none of them can live to be eighty years old.

"After the cataclysm, human beings are expected to live forever, various cultivation methods and pills are emerging in an endless stream, our Liu family has been exploring a solution to this blue blood for nearly a thousand years, and now, it may be the last chance to solve this problem." Liu Jingxing looked at his father, who was speechless, and explained.

"Grandpa also looked for the Xuanyuan Hall Master before, but he has no clue about this blue blood, and there is no solution, Lin Feng, you are different from ordinary alchemists, you can develop a new Dan formula, so I beg you, help our Liu family!" Liu Zhong knelt directly in front of Lin Feng and said in a sincere tone.

"Brother Liu, you get up first, I didn't say I wouldn't help." Seeing this, Lin Feng immediately helped Liu Zhong up.

"Grandpa Liu, I know some rumors about the blue blood, but I'm not sure if the blood of your Liu family is the same as the rumor I know, so I have to study it." Lin Feng used his soul power to pierce into the blue blood and found some clues.

"Really?! That's great! Xiaofeng, even if you study what you need us to do, just ask, and we will do our best to cooperate." When Liu Shang heard this, he was overjoyed and hurriedly spoke.

"I'm not going back today, Grandpa Liu, can you help me arrange a place to live? Also, prepare an alchemy room for me, and the fresh blood of the three of you, and prepare three copies for each of you." Lin Feng was also very interested in the blue blood of the Liu family, and directly planned to live in the Liu family, which would also facilitate his research.

"Good, good! Jing Xing, you go and arrange it for Xiaofeng!" Liu Shang hurriedly opened his mouth to respond, he couldn't ask for such a good thing.

On the same day, Lin Feng stayed at Liu's house, and he also began to study this blue blood.

"The sensing of source power and soul power is so sensitive, no wonder Liu Zhong's talent is so good, and the strength of Liu Jingxing and Liu Shang is also close to the Mortal Realm, so I think it is inseparable from this blue blood." Lin Feng tested this blue blood with source power and soul power, and found that these blood were extremely sensitive to both forces, and as long as they came into contact with it, it would emit some kind of strange resonance.

"Could it be that the Liu family is really a spirit clan? No, how could there be such a high-level race as the Spirit Race in Blue Star? And it appeared nearly a thousand years ago." Lin Feng was puzzled in his heart.

Spirit Clan, because the blood of the people in this clan is blue, it is also known as the Blue Blood Clan, Lin Feng has been in contact with it in the Source Realm, the Spirit Clan is a branch of the Human Race, and because of the excellent cultivation talent of its people, it is also the top three clans in the Source Realm.

At that time, Lin Feng also went to meet the Holy Realm Ancestor of the Spirit Clan in order to seek a way to become stronger, the Spirit Ancestor was the strongest under the Three Venerables of the Source Realm, and his lifespan was even earlier than the Three Venerables of the Source Realm, and he didn't know how long he lived.

Even the three Venerables of the Source Realm are polite to them.

According to the ancestor of the Spirit Race at that time, the reason why the Spirit Race was strong was because of their blood, as a branch of the Human Race, they also had their own Dao system, but in terms of inheritance, they were different from the Human Race.

The normal human race inheritance is two ways, one is to pass on the Dharma, the other is to pass on the power, and the Spirit Race will also teach the Dharma by word and deed, but they don't use this way, because the empowerment is too limited, and there will be an explosion or a large loss of power.

The way the spirit clan's skill is inherited is blood, and their lifelong cultivation will condense into a wisp of essence blood and submerge into their descendants, which is also the fundamental reason why the spirit clan can become the top three clans in the source realm.

Although there is no difference between the situation of the Liu family and the way of inheritance of the spirit clan, they are not stronger from generation to generation, Lin Feng thought about it, and he could only attribute the reason to the fact that the ancestors of the Liu family were all martial arts cultivators, and there was no source power to pass on.

"If the Liu family is of the spirit bloodline, this problem will be easily solved, if not, I am afraid that there will be no solution without a live experiment. Forget it, let's refine the pill first, if it's bloodline, just test it."

Lin Feng thought back to the pill he had mastered, and found an elixir called the Bloodline Pill, this pill was not very useful, all the families in the Source Realm used it to test the concentration of the bloodline of family members, and now it could be used to test whether the blue blood of the Liu family's descendants was related to the bloodline.

Lin Feng was not familiar with the Bloodline Pill, and finally found three materials for refining the Bloodline Pill from the pile of medicinal herbs.

The Bloodline Pill didn't have much use value, but the refining process was extremely cumbersome, and it took Lin Feng a night to successfully refine a barely usable pill.

"Now you only need to drop Liu Zhong's blood on the pill to know if this blue blood is bloodline." Seeing that the sky was dawning, Lin Feng got up and rubbed his waist, and he was a little hard after sitting all night.

Lin Feng pulled out a tube of the three tubes of blood that Liu Zhong had prepared, slowly poured out a drop, and dripped it on the bloodline pill.

The blood dripped on the surface, and the blood vein pill was like a sponge absorbing it completely.

After only a breath of time, the blood in front of Lin Feng was full of blood, and the azure light filled the entire room.

"Bloodline, it's really bloodline, that means that the Liu family is actually a descendant of the Spirit Clan." Lin Feng saw the reaction of the Blood Pulse Pill and breathed a long sigh of relief.

The bloodline problem at least proves that the Liu family is not cursed or has any genetic diseases, and what needs to be solved now is nothing more than the overbearing backlash of the spirit bloodline.

The reason why no one in the Liu family can live to the age of eighty is because of the backlash of the spirit bloodline, only by constantly providing source power or soul power to feed the bloodline, can we ensure that we are not counterattacked, otherwise, the spirit bloodline will erode the body and soul, and it will not live long at all.

"Now that they have the source power, they can also cultivate, maybe the backlash won't appear again." Lin Feng didn't have the cultivation techniques of the Spirit Clan in his hands, and he didn't dare to teach Liu Zhong any exercises casually, in case it was self-defeating, it would not be beautiful.

"Yes, although I can't instruct them on any exercises, but you can set up a spirit gathering array in the Liu family, the spirit bloodline needs abundant source power or soul power support, then I will create enough source power for them to absorb, although it can't completely solve the problem, it can be regarded as an expedient measure."

Lin Feng quickly thought of a way, and just did what he said, directly pushed the door and walked out of the room, and ran out over the courtyard wall of the Liu family.

He circled around the Liu family, and after he had a general understanding of the Liu family's location, he began to step on the point, and at each point, he would take out a fist-sized crystal source ore and punch it into the ground while sealing the entrance of the cave.

It took nearly two hours for Lin Feng to finally get a circle around the Liu family, and Liu Shangye, father and son, also ran out of the gate after receiving the report to see Lin Feng burying things there.

"Xiaofeng, what are you doing here?" Seeing that Lin Feng was about to climb back from the courtyard wall again, Liu Shang hurriedly spoke.

"Grandpa Liu, I have found a solution, don't worry, it will be fine soon." Lin Feng replied

and then went back over the wall.

"Alas, this kid doesn't leave the door, why do you have to climb over the wall?" Liu Shang saw Lin Feng turning over the wall, shook his head, whispered, and then took Liu Jingxing and his son back from the gate with his hands behind his back.

After the outer ring was arranged, the speed of Lin Feng's arrangement accelerated, and the Liu family watched Lin Feng bury things everywhere, but they didn't know what he was doing.

"The last one! That's it!" As Lin Feng smashed the last Crystal Source Ore into the ground, the Liu family's oversized Spirit Gathering Array took shape.

"Hum ~" An invisible fluctuation spread, and the source power of the entire Jiangnan Base City began to converge towards the Liu family, but the speed was not fast.

"Grandpa Liu, what is the problem with your blood, I have basically figured it out." Lin Feng looked at Liu Shang and spoke.

"Figured it out? Let's talk, this is not the place to talk, let's talk in detail!" Hearing Lin Feng's words, Liu Shang suddenly smiled and pulled Lin Feng to talk in detail.

"Alright, Xiaofeng, there are no outsiders here, you can say, what is going on with our blood?" After Liu Shang took Lin Feng to his study, he couldn't wait to ask.

"Grandpa Liu, you may not believe what I said, but I can guarantee that everything I say is true, do you want to ...... first" Lin Feng still gave Liu Shang psychological construction first.

"That's it, old man, what else do I have to question? We can't find out the cause of the blood problem, and now that you're willing to tell me what's going on, it's already a great favor, so why should I doubt you." Liu Shang waved his hand and directly interrupted Lin Feng's speech.

"Grandpa Liu, according to my research, the ancestors of your Liu family are not from the Blue Star......