He knew that if he used ordinary water to raise these Yangtze River Reeve's Shad, the effect would not be very noticeable. Therefore, he wanted to bring them into the space, just like the last time with those Little Golden Arowanas, so they could be nourished by the spiritual energy and Spiritual Spring in the space, which would definitely be healthier than outside.

Zhenfei carried the bucket into the room, locked the door behind him, and then focused his mind, entering the Marrow Space.

The spiritual energy in the space was as abundant as always. Zhenfei first poured out the water in the bucket, and then filled it with the Spiritual Spring from the Xuantian Spirit Spring Pot.

It seemed that the five Little Yangtze River Reeve's Shad sensed the spiritual energy in the space and immediately became excited, swimming back and forth energetically in the Spiritual Spring, appearing much more lively than before.

"Little guys, this is your new home. You should grow well here, and I'll arrange a bigger home for you later."

Seeing these happy little creatures, Zhenfei couldn't help but cheer up. He gently patted the edge of the wooden bucket, observed the playful little beings for a while, and then went to check on the Golden Arowanas in the large fish tank nearby.

When the Little Golden Arowanas were first brought in, they were all fry. But now, in such a short time, each of the Little Golden Arowanas had almost grown into big fish. As for that adult Golden Arowana, it was even more powerful than before.

Seeing this family of Golden Arowanas crowding in the water, making the large fish tank seem somewhat cramped, Zhenfei decided to speed up the construction of the greenhouse fish farm. Once that was done, he could move the Golden Arowanas there and still nourish them with the Spiritual Spring. The effect wouldn't be much different from being in the space.

With the space full of spiritual energy, Zhenfei settled the fish and, seeing that it was still early, decided to sit down and start meditating and breathing exercises.

Although Zhenfei's martial cultivation broke through to the Mingmu Realm right after he obtained the Marrow inheritance, because of his relatively weak martial arts foundation, his progress had been very slow over the past few months, despite his constant practice.

Up till now, his strength had only just reached the third level of the Mingmu Realm.

Zhenfei sat quietly in the space, focusing on his breathing exercises. When he finished a small cycle of cultivation and slowly gathered his energy, he clearly saw a faint ripple appearing in the void around the door connecting to the next level of the space.

What... is this?

The Marrow Space had nine layers in total; this was something Zhenfei had known since he first entered the space.

Moreover, he also knew that he was currently only in the first layer of the Marrow Space, with the other eight layers remaining sealed and unfamiliar to him.

Before now, every time Zhenfei entered the space, he had tried to explore the secrets of the other layers.

However, the unlocking of other layers seemed to be closely related to his cultivation level. His current cultivation was too shallow, and he had no right to explore the other layers.

But previously, when he observed the connecting door of the space, he had only been able to sense an endless void. Why did he see such a faint ripple in the void this time?

Could it be that the door to the second layer of the space is showing signs of opening?

If that were true, wouldn't it be too unreasonable?

Logically speaking, each layer hid many secrets unknown to him. With his current strength and knowledge, he couldn't open or control the secrets of the other layers.

If the opening of the doors to the other layers wasn't proportional to his cultivation improvement and was this random, the underlying uncertainty would be too unpredictable!

Bzzz! Bzzz! Bzzz!

Zhenfei's mind was in chaos, unable to find an answer. Just as he tried to take a closer look at the ripple in the void, the faint ripple disappeared with a light mosquito-like buzzing sound.

What... is this?

Zhenfei was obviously startled by this sudden occurrence, quickly rubbed his eyes, and looked again carefully. There was no trace of the ripple in the void.

In his confusion, Zhenfei cautiously approached the door of the space. When he reached out, his fingertips touched an endless void, without causing any ripple.

If the void door wouldn't ripple under any circumstances, then... how could the scene just now be explained?

At that moment, Zhenfei fell into deep confusion. He was a hundred percent sure he hadn't been seeing things. He had indeed seen the ripple in the void with his own eyes.

But now...

Zhenfei furrowed his thick brows, unable to unravel the mystery.

However, this Marrow Space was inherently an abnormal existence, full of mysteries he couldn't comprehend. Even if the ripple he saw in the void wasn't a hallucination, what could he do about it?

It seemed that if he wanted answers, the only solution was to strive to improve his cultivation. Once his strength reached a level capable of breaking through the void door, all questions could be answered!

Thump! Thump! Thump!

Just as Zhenfei was gathering his thoughts, trying to snap out of his bewilderment, he heard a distinct knocking on the door beyond his hearing...

Indeed, a distinct knocking sound was echoing in his ears.

Remember, the Marrow Space existed between illusion and reality. Such a nine-layer space actually resided in Zhenfei's brain or could be said to exist within his mind.

Each time Zhenfei entered the space, it was not his physical body that entered but his consciousness and spirit. His physical body was quietly meditating in his room!

When Zhenfei's consciousness returned, he could hear such a clear knocking sound. It was evidently a sound from the real world.

That is to say, someone was knocking on the door outside his room.

Realizing this, Zhenfei no longer lingered in the space. He concentrated his mind and energy, returning to the real world.

Sure enough, when his consciousness returned to his body, he could hear his sister-in-law's voice outside the door: "Zhenfei, it's dinner time. Are you awake?"

"Oh, oh, I'm coming right away!"

Zhenfei quickly checked his watch and found that he had been in the space for two hours, feeling a bit embarrassed. He responded as he got up to open the door.

When the door opened, Zhou Yun looked at him with a mixture of suspicion and concern: "Zhenfei, have you been very tired these days? If you're exhausted, stay home and rest for a few days. Making money is important, but taking care of your health is even more important!"

"Oh, sister-in-law, I know. I was just reading a book and nodded off... then fell asleep!"

Zhenfei nodded embarrassedly. Although he didn't want to deceive his sister-in-law, the Marrow Space was a top-secret matter. No one else could know about it.

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