Chen Hao replied casually: "It's safer to build underground!"

Walking down the steps down the cave, I made a ninety-degree turn, and the firelight on both sides of the cave drove away the darkness.

The cave is a standard square and is built of hard granite from the top, bottom, left and right.

Seventeen touched the rock wall, and the granite surface was very smooth, and it felt like a well-polished copper mirror.

Chen Hao estimated that if the rock formation was thick enough, even if it was a congenital master, he could only honestly walk through the main entrance.

After walking about a hundred meters, Seventeen saw two guards, who were standing in the middle of the cave with a thick rock wall behind them.

The torches stuck in the rock wall shadowed their faces, and they were motionless, Seventeen could barely feel their breathing, like sculptures.

Coming to an end?

Seventeen said tentatively, "I'm here to receive the exercises!"

The guard on the right said, "Token!"

His voice was hoarse and dry, as if he hadn't spoken for a long time.

Seventeen showed the jade pendant given to him by the eldest prince.

"Let's go inside!"

The two guards made way for Seventeen, and with a rumbling sound, the granite wall slowly moved to make way for an entrance.

Seventeen walked in and found himself in a huge room.

The room was neatly filled with bookshelves, and an old man stood quietly in front of the bookshelf flipping through a tattered and yellowed ancient book.

Finding Seventeen entering, he gently put the book back in place and asked in a low voice, "Who are you?"

"I'm Seventeen!"

"Well, the eldest prince informed me, come on!"

Following the old man through the large room, he pressed his hand to the granite rock wall, which opened again.

When Chen Hao saw this scene, he almost didn't jump!

Is this technology fingerprinting?

Seventeen followed the old man into the secret room, which was still not small, half the size of a football field.

"There are all yellow-level exercises and martial arts here, you pick one of the exercises!" the old man admonished, "Remember, you can't pick it up and flip through it, there is a formation in the room, and as soon as you touch the book, the formation will be activated......"

"So how do I pick?"

"Tell me which one you choose, and I'll get it for you!" the old man then said, "Each book of exercises and martial arts has its characteristics written next to it. ”

"Hmm!"

In the secret room the size of half a football field, the yellow-level exercises and martial arts were enough to dazzle him.

These are all part of the heritage accumulated by the Lan family over the past hundred years.

The exercises and martial arts were classified, and Seventeen quickly found the location of the Huang-level high-grade exercises.

"Qianyuan Gong", a yellow-level top-grade, no attribute exercises, the cultivation speed is relatively slow, the true yuan is more pure and vigorous after cultivation, and the true qi recovery ability is faster.

"Clear Wind and Rain Technique", yellow-level top-grade, water attribute exercises, medium cultivation speed, and extremely fast true qi recovery ability.

......

Seventeen set his sights on a book with an extremely high-end name - "Invincible Devouring Heaven and Earth Nine Turns Immortal Divine Skill", yellow-level top-grade, earth-attribute exercises, extremely fast cultivation in a short period of time, the cultivation progress in the middle and late stages of the Qi Sea Realm has almost stagnated, there are many impurities in the true yuan, and the recovery of true qi is extremely slow, so it is not recommended to choose.

Seventeen pouted and simply didn't look at it.

This exercise is a pit, and he knows very well the seriousness of the true qi not being pure enough!

Many martial artists just take too many pills in the early stage to improve their cultivation, and their true qi is doped with too many impurities, resulting in being stuck on the bottleneck in the later stage and making it difficult to advance.

The price of using external force to purify the impurities in the True Qi is too high, even if it is a martial artist from a great family, it is difficult to afford it.

The name of the high-end and high-grade martial arts does not mean that it must be very powerful!

After all, the name was chosen by the martial artist who created the exercises, and what name to choose is the freedom of the family.

It's not surprising that there are some very middle two names once in a while.

Seventeen glanced at all the exercises nearby...... Soon found a batch of martial arts with extremely shocking names.

For example, the yellow-level mid-grade "Invincible Divine Fist", the yellow-level middle-grade palm hair "Destroying God Palm", the yellow-level lower-grade swordsmanship "God-killing Sword Method" 1, the "God-killing Sword Method" 2, and the "God-killing Sword Method" 3...... Nineteen took a closer look at the introduction of martial arts, and the number behind "The Sword Technique of Killing the Gods" is not the meaning of the first style and the second style of the Sword Killing Method, but the name is the same!

Emmm...... It seems that many unpopular sword creators like the name "god-killing sword".

Chen Hao reminded: "Seventeen, you pick that "Blood War Technique"!"

"Blood Battle Technique", the yellow level of the upper grade, the blood attribute exercise, this exercise comes from the blood god sect Xuan-level lower grade exercise "Blood Coagulation Technique", after modification, the martial spirit of the martial artist who cultivates the "Blood Battle Technique" will be more stable, not easy to lead to madness, the cultivation speed is faster, the true yuan is more pure and strong after cultivation, and the true qi recovery ability is faster, especially suitable for the cultivation of martial artists who often need to fight.

"Good!"

Seventeen didn't ask why, he knew that since Lord Sword Spirit asked him to choose the Blood Battle Technique, he must have his own reasons!

Besides, among all the yellow-level high-grade exercises, the "Blood Battle Technique" also belongs to the excellent level, and it is also very much in line with Seventeen's own fighting style.

"Don't worry, I won't let you suffer!"

Then Seventeen, with the consent of the old man, looked for a Xuan-level low-grade martial art suitable for him, but he looked for anything in the narrow stone room, and he didn't find the "Ice Heart Condensation Technique" recommended to him by Commander Hu.

When I asked the old man, I realized that the "Ice Heart Condensation Technique" was not a martial art, but a rare special technique for cultivating the mind, and he was not qualified to get it.

In desperation, Seventeen can only choose a heavy sword swordsmanship "Qianjun Sword Technique", "Qianjun Sword Technique" is the top level of power in the Xuan-level lower grade exercises, and the swordsmanship has high requirements for the user's strength, the greater the strength, the more powerful it is.

Seventeen is very much in line with the requirements of this sword technique.

Although he didn't find the Ice Heart Condensation Technique, Seventeen was still very satisfied.

The old man handed over the two exercises and martial arts to Seventeen and said, "Memorize the two exercises and martial arts!"

Seventeen asked with a bitter face, "Can't you take it back and carry it?"

The two books of exercises and martial arts together have more than 60 pages, and they also include many drawings of the meridians of the human body.

It's not easy to memorize them in one go.

The old man said in a flat tone: "If you are a descendant of the family, you can take the exercises out!"

It wasn't until the middle of the night that he skillfully memorized the contents of the two martial arts.

As soon as he returned to his residence, Seventeen couldn't help but start to study the newly obtained "Blood War Technique".

Martial artists can transfer to other high-level exercises under certain conditions, and the restriction is that water attribute exercises can only be transferred to water attribute exercises, wood attribute exercises can only be transferred to wood attribute exercises, and other attribute exercises can also be transferred, but in the process of transferring, the loss of true qi is very large, which will lead to a significant decrease in cultivation.

The seventeen cultivation of non-attribute exercises can be converted into arbitrary attribute exercises, and when the Lan family cultivated them, they left a choice opportunity.

Transferring to other exercises is a water grinding job, and it is necessary to slowly convert the non-attribute true qi condensed by cultivating "Hun Yuan Gong" into the blood attribute true qi required by "Blood Battle Gong".

Just when Seventeen had just converted a trace of blood attribute true qi according to the "Blood War Technique", Chen Hao shouted in his mind: "You quit cultivation first, I have something to tell you!"

was interrupted from cultivation, but Seventeen was fine, but his chest was a little uncomfortable.

After all, Chen Hao's interruption was not very rude!

If it was someone else who interrupted his cultivation, Seventeen would definitely be in a bad mood!

But the other party is a sword spirit, so it's different.

"Sword Spirit-sama, what's the matter?"

"I have a technique that is more suitable for you to teach you!"

"What exercises?" Seventeen's eyes lit up.

Lord Sword Spirit's vision has always been very high, and the exercises that can be taught to him should not be ordinary, such as Fu Yuanming's predecessor's martial arts "Beheading", which is extremely profound, he has not understood it so far, but it has also benefited him immensely, and now Sword Spirit wants to teach him exercises again.

How could Seventeen not be excited?