Moreover, there is a distance of about half a meter wide between the two courtyard walls, forming a narrow, dark alley... Such a narrow alley may appear between ordinary people's houses, but it definitely does not appear.

In such a deep house and compound, after all, people who can afford to live in a deep house and compound do not need to worry about the size like ordinary people.

besides.

Two metal expansion rails were specially added to the top of the two-story courtyard wall.

This expanded fence is somewhat similar to the fences of later generations, with a row of spikes pointing upward like spearheads. The difference is that although the fences of later generations also have spikes, they are mainly for decoration and do not have many features.

The lethality was high, but the spikes on the two expanded fences were clearly sharpened, reflecting sharp cold light under the moonlight.

"What exactly is in this yard?"

Wu Liang couldn't help but secretly speculate again.

Even private cells or solitary cells rarely build such arrays.

It should be noted that these two walls are not only to prevent things from coming out of the yard, but also to prevent people from outside the yard from breaking in.

"There's nothing to see. Go quickly. The master is waiting for you."

Seeing that Wu Liang's steps were a little slower, Yan Lu urged him coldly.

"Um……"

Wu Liang had to retract his gaze, but the moment he entered the courtyard, his eyes accidentally caught a glimpse of cold light.

This cold light comes from the small alley that is only half a meter wide in front of the two walls. It is obvious that this small alley is also full of sharp weapons, which is more exaggerated than the expansion rails on the two courtyard walls.

.

This courtyard is simply a small city.

And that small alley is the moat of this city, a "moat" made of murderous weapons!

Realize this.

Combined with previous speculations, Wu Liang has also realized that the "Great Array" mentioned by Zhen Mi, and the secrets Zhang Liang explored and hidden, are probably in this courtyard.

Now Wu Liang really wants to know when Zhang Mansion was built?

Did Zhang Liang discover something first and then build a mansion here to hide it? Or did Zhang Liang discover something in the process of building the mansion and then temporarily change and build such a courtyard, sealing it forever for him to explore.

…

Arriving at the courtyard like this, Wu Liang only saw a big house in the middle of the courtyard.

Different from the brick house in front of Zhang's house, this large house is made entirely of neatly cut stones, and the size of each stone is quite large, weighing several hundred kilograms.

To build such a large stone house, at least hundreds or thousands of such stones must be used, and the human and financial resources consumed are absolutely considerable.

But relatively speaking.

Such a stone house is also much stronger than common houses. In addition to having little resistance to earthquakes, it must be able to withstand other things. It may be stronger than the bunkers in the thermal weapon era of later generations.

besides.

The door of this big stone house is not an ordinary door, but a cast iron door that is rarely used in this era.

Moreover, the two cast iron doors are bare on the outside, with no handles, no bolts, and no place to lock. There is only a one-inch hole at the height of a person, which means that this door can only be opened.

Open it from the inside.

And if this is the case, every time the door is closed, someone needs to be stationed inside the iron door, and the small hole in the door should be the window through which the person stationed inside can look out.

besides.

Wu Liang also noticed that there was a wooden plaque hanging above the door.

The plaque reads "Zhang's Ancestral Hall" in four large gilded official characters.

This is a bit obvious...

If there is no evil in his heart, no normal person would build his ancestral hall like this. It is simply a heavily guarded bunker. I am afraid that the treasury of later generations of banks will not be so careful.

"It's me, open the door!"

Wu Liang, Dian Wei and the accompanying soldiers were ordered to wait at the back, while Yan Lu walked forward and knocked on the iron door.

"Today's password."

Three seconds later, a cold voice came from inside the iron door.

So harsh...

Wu Liang sighed.

Yan Lu was a slave who had followed Zhang Liang a long time ago and was a steward of the Zhang family. It was impossible for people inside not to know him, but even so, Yan Lu still needed to give the password before entering.
Chapter completed!