Many times, when a person reaches a certain stage, as one's vision, ability and realm improve, he can let go of many things and deal with them indifferently.

When he was in Heiyan City, one of Zhang Tie’s dreams was to buy a big house for his family. To this goal, Zhang Tie tried very hard to catch up, and imagined in his head countless times that such a house would be in Where in the city, how to arrange the rooms in the house, what kind of furniture, what kind of curtains, what kind of lawn in the yard, what scenery should be arranged in the yard, what kind of trees should be planted in the yard, etc. These details have been outlined by Zhang Tie very carefully, thought and considered. After all, it is a "big event" involving "a few hundred or even thousands of gold coins", and now, even if it is to build a big city like A Zhang Tie decided on the matter and exchanged thoughts with the people around him, and the matter was left to others.

Even if this newly-built city will become the "blood sacrificial supplies trading center" of Taixia and Humans in the future, even if this is a big project with an investment of tens of millions or even hundreds of millions of gold coins, Zhang Tie will no longer worry about it, or even care about it. Where should the city be built?

Money, Zhang Tie has put down and calmly.

For Zhang Tie, the most important thing at the moment was that when he knew that the blood sacrifice furnace could no longer provide greater help to his current situation, the small tree in the Black Iron Fort became Zhang Tie’s most urgent desire to grasp. s things.

The tree has shown him countless miracles and brought him countless surprises. This time, Zhang Tie longed for the tree to appear miracles again and bring him surprises.

After leaving the hall where the blood sacrifice furnace was placed, Zhang Tie came to the secret room where the master of the secret room was on the Xuantian Peak. After confessing to the several disciples of the Iron Dragon Sect guarding outside the secret room, Zhang Tie also entered the secret room. in.

I kept watching the half-meter-thick alloy composite door outside the passage slowly closed by the disciples outside, and the winch on the door slowly turned. After Zhang Tie locked the winch inside, Zhang Tie put down the calmness that he forced on his face. And calm, exhaled a long breath, and walked into the tunnel.

The passage of the closed chamber descends and extends to the interior of Xuantian Peak. On both sides of the passage, there are inlaid fluorites, and the light of fluorite shines the whole passage into green. It was quiet and silent. Walking in such a passage always gave people a feeling of being about to set foot in the darkness. In the whole passage, only the slight footsteps of Zhang Tie stepping on the steel steps below the passage.

The knight is fragile during the formal retreat, and at the same time it is dangerous. It is said that it is fragile because the knight does not have much protection against external threats during the formal retreat. When immersed in the realm of some secret practice, he retreats. A knight, in fact, like an ordinary person asleep, can be easily put to death, and it is also dangerous. It is also because the knight is practising the secret method. If he goes crazy or the secret method goes wrong, it is easy to bring it to the ordinary person. Great harm.

In the past, due to insufficient security measures in the retreat, there were precedents of knights in retreat being assassinated by ordinary people during the retreat. As for the knights in retreat, the enemy took the opportunity to find the door, and there were more examples of killing them at critical moments.

It is also because of the problem of the retreat place. Such things have happened before. A knight practiced the secret method in the retreat. Something went wrong. The whole person fell into an illusion. He easily broke through the barrier and took his own The family disciple killed him cleanly. When the knight woke up, he saw the blood on his hands and the bodies of his family disciples. The whole person could not accept this reality and chose to commit suicide.

It is precisely because of the existence of these cases that in this era, the secret rooms where the knights really closed have been very, very particular, and have many strict requirements.

Outsiders, even high-ranking knights, cannot easily destroy entry and detection perceptions. This is the first basic requirement of the knight's closed chamber. The second basic requirement of the closed chamber is that only sober knights can go out.

To meet such basic requirements, this also determines the place where the knights retreat, which is comparable to those underground shelters built to prevent nuclear weapons attacks before the cataclysm.

There are not one alloy gate under the passage, but many. Those alloy gates are like the doors of a safe. When Zhang Tie passes through, they are locked by Zhang Tie with a code. They can only be opened inside, and they must be The knight opened it with a password when he was awake.

The walls on both sides of the passage and the ground under the feet are built with strong metal structures in many places, and the zigzag structure that extends for a kilometer inside the passage is destined for such a passage. Unwilling to completely destroy the passage with one blow.

Outside the secret room at the end of the passage, there are as many as three layers of half-meter thick heavy lead isolation layers. These heavy lead isolation layers can completely isolate all the knight's knight consciousness and spiritual power.

Walking into the closed chamber from the passage, Zhang Tie finally breathed a sigh of relief when he locked the last protective door in the chamber.

His wife is too powerful, and it is also a problem for Zhang Tie at certain times. Bai Suxian will not say anything. A knight in the sky like Yan Feiqing, as long as Yan Feiqing is beside Zhang Tie and not in such a place, Zhang Tie wants to enter The Black Iron Fortress was about to be discovered by Yan Feiqing in an instant. This was also the reason why Zhang Tie had not found a chance to enter the Black Iron Fortress for so long in Xuanyuan Hill.

Of course, Zhang Tie does not distrust Yan Feiqing, but Zhang Tie feels that even if he and Yan Feiqing are husband and wife, it is still necessary to keep a little private "small space" and "little secret". , Just like his father would secretly hide a little private money at home, is his father worried about his mother? Of course not.

The cultivation chamber is not large, less than a thousand square meters. The entire chamber is divided into two areas, light and dark. In the dark area in the chamber, there are also some dark plants that are only found in the underground world. These plants can be used in the absence of light. It can continuously synthesize and produce oxygen at any time, so the air in the cultivation chamber is still relatively fresh.

In addition to these, in this secret room, there is a secret escape route.

Little tree, here I am!

It has been a long time since I entered this secret room. I looked around the secret room for a week and found that there was no problem here. Zhang Tie mobilized the trace of mental power fluctuations remaining in the sea of ​​consciousness, and the whole person instantly entered the black iron castle again. Appeared in the main hall of the palace tree in the Black Iron Fort.

"Master Castle, welcome back!"

The personable Heller had already waited in the palace tree with A-Gump and the three of them.

Zhang Tie closed his eyes, and took a deep breath of fresh air with aura in the Black Iron Fort, and then opened his eyes.

"It's nice to be able to see you. This time, I thought I would almost never come back!" Zhang Tie said, no matter what Heller was doing, he went straight forward and hugged Heller tightly. , Patted Heller's back vigorously.

At the moment when he was hugged by Zhang Tie, Heller's body stiffened, and his eyes fluctuated, before returning to normal.

After giving Heller a hug, Zhang Tie hugged Forrest Gump one by one. Compared with Heller's calmness, Forrest Gump was directly at a loss by Zhang Tie's embrace.

Everyone has been together for so long, although Heller and Forrest have always regarded themselves as Zhang Tie’s subordinates and servants, but in Zhang Tie’s heart, they feel more and more like their own friends. It is a friend who is helping yourself wholeheartedly and can be worthy of trust.

"Okay, don't be like that, just a hug! I am alive and well. It is luck to be able to come back alive. Do you know what I was thinking when I woke up in Xuanyuan Hill?" Answered, Zhang Tie continued to speak for himself, "I'm thinking, if I hang up this time and leave you in the Black Iron Fort, you are too pitiful. I should find a wife for you. it is good!"

Seeing the dumbfounded look of Forrest Gump, Zhang Tie finally couldn't help but laughed, and then turned and walked towards the tree. This time, Zhang Tie was caught by the tree at first sight. The change attracted...

A strange fruit hung on the small tree. The fruit glowed with a brilliant and soft golden brilliance covering the small tree. It resonated with the small tree. The whole small tree was like a golden torch. There were waves of strange fluctuations...

Seeing such a scene, Zhang Tie was shocked, and his pace stopped in an instant.

"That is the fruit of human salvation..." Heller's voice sounded behind Zhang Tie.

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