Because this is the only building in the entire square.

If the Heart of Source is in the square, Lin Yun felt that the breakthrough was likely to be on this broken sword sculpture.

Lin Yun walked under the sculpture of the broken sword and looked up.

The fluctuations of the tree of the origin in the body are still continuously coming out.

Buzz!

Just as Lin Yun was looking at the broken sword sculpture, the broken sword sculpture suddenly trembled.

"What's going on?"

Faced with the sudden fluctuations, Lin Yun was very surprised. Lin Yun had never touched this broken sword sculpture before, so how could he suddenly have fluctuations?

Under Lin Yun's gaze, the broken sword sculpture slowly separated, and an underground passage appeared in Lin Yun's sight.

"There is actually an authentic tunnel!" Lin Yun's heart also became warm when he arrived at the accident.

Did you say that the Heart of Source is here?

Lin Yun felt that the possibility was not small, because there was no trace of the Heart of Source on the square.

After thinking about this, Lin Yun rushed into the tunnel directly.

Lin Yun knew that there might be mechanisms and traps in this, but Lin Yun was very strong and more confident in defense, so he was naturally very skilled and brave.

After entering the tunnel, the light suddenly dimmed.

Lin Yun also cheered up and prepared to investigate through his spiritual sense first.

"The spiritual sense cannot be detected!"

Lin Yun found that the passage was painted with a black layer, and his spiritual sense could not penetrate it.

When Lin Yun first arrived in the square, he had quietly used his spiritual sense to explore it, but he did not find anything unusual.

Now it seems that there is something underneath that blocks the spiritual sense to explore, so when Lin Yun was exploring in the square before, he did not find anything special below.

Since his spiritual sense cannot be detected, Lin Yun can only hold the sword in his hand and move forward cautiously.

...

Outside the square.

The appearance of this cave entrance also attracted the attention of monks in the square, and many monks surrounded him.

"I didn't expect that there was such a situation in the square of the Miracle Ancient City?"

"That powerful man from the Void Dao Realm just walked in."

"No wonder that the powerful man from the Void Dao Realm came to this Miracle Ancient City. It seems that he must know that there is an entrance here. It seems that there must be something good inside, the kind that can attract powerful man from the Void Dao Realm."

...

The monks surrounding them all started to talk.

However, no one dared to go in. After all, Lin Yun, the Void Dao Realm, had already entered, so they were naturally afraid that after entering, they would anger the powerful people in the Void Dao Realm and could easily wipe him out.

...

Below.

Lin Yun walked along the passage. Although Lin Yun was cautious along the way, he unexpectedly encountered no trouble.

Along the way, Lin Yun was still thinking about a question.

Why did it open the passage as soon as it arrived under the broken sword sculpture?

This is impossible to be a coincidence at all, right? How could such a coincidence be so?

"Can it be because of the tree of the origin in my body?" Lin Yun made a bold guess.

Perhaps it also sensed the source tree in its body, so when it comes to the front and back, the passage opens?

At this moment, Lin Yun stopped.

"Oh no, I stepped on the formation mechanism!" Lin Yun's face changed, and he raised the sword in his hand and prepared to face the attack of the formation mechanism.

But the scene was silent and there was no trigger from any mechanism.

After waiting in place for a few seconds, Lin Yun took another step and walked forward.

Soon, Lin Yun finished the dark passage and came to an underground secret room.

The secret room is not big, only about one hundred square meters.

When Lin Yun stepped into the secret room, he found that the entire secret room was covered by a formation. There were a large number of formation patterns and spells on the walls, top and ground of the secret room.

This moment made Lin Yun feel a chill behind him.

Although Lin Yun is not proficient in formation, you can see at a glance that this is definitely an extremely complex formation and is absolutely powerful!

"The first time I stepped into this secret room, this formation should be triggered, why... why did it still have no reaction?" Lin Yun said in surprise.

Since this formation still did not trigger, Lin Yun didn't care about that much and immediately raised his head and glanced at him.

The eyes finally stopped on a stone platform in the middle of the secret room.

"That's...that's the Heart of Source!"

Lin Yun saw at a glance that there was a black tortoise-shaped thing placed on the stone platform, which was the Heart of Source!

The moment he saw Yuan Zhixin, Lin Yun swallowed his saliva and his eyes became hot.
Chapter completed!