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"I should visit the mine when I get the chance..."
Mo Hua thought to himself.
He wanted to know what exactly these Walking Corpses were doing inside the mines.
But for now, he couldn't leave.
After leaving the entrance of the Stone Palace, Mo Hua took a brief look around and then went back to sleep honestly.
In the following days, Mo Hua used the complete Concealment Technique, hiding from Lu Chengyun and familiarized himself with the interior of the Stone Palace.
Indeed, there were many zombies here, and their strength was formidable.
It was even stronger than the Lu Family's apparent strength on the surface.
If one day the Lu Family stopped allowing Lu Chengyun to be the Family Head...
With just one order from Lu Chengyun to control the Iron Corpses and the Walking Corpses, he could truly annihilate the Lu Family...
Mo Hua furrowed his eyebrows, pondering.
Could it be that the Lu Family Old Ancestor was apprehensive of this and that's why he let Lu Chengyun become the Family Head?
But that didn't seem quite right either.
Constructing such a massive Stone Palace and refining so many zombies.
It required many Body Cultivators, Formation Masters, Corpse Cultivators, as well as corpse refining herbs, coffins, Corpse Controlling Bells, corpses...
The cost in manpower and resources was no small sum.
Without the support of the Lu Family, Lu Chengyun could never have built this.
There must be secrets between the Lu Family Old Ancestor and Lu Chengyun...
However, with so few clues, Mo Hua couldn't guess for the time being.
Mo Hua thought about it and felt it was time to contact his Junior Brother and Sister.
Inside and outside collaboration would make things more convenient.
In case of an accident, they could also help him.
Mo Hua took out a Map, which depicted the geographical layout of the Lu Family's mines.
Mo Hua then took out another piece of paper and sketched out the entrance to the Corpse Mine and the approximate location of the Stone Palace from memory.
Comparing the two, he roughly inferred the location of the Stone Palace within the mine.
Then, based on the location, he speculated where the walls of the mine were thinnest, which would be the easiest for him to dig through.
First off, his own room would not work.
Mo Hua glanced at the Map and realized that his room was situated deep within the Stone Palace, the distance to the outside rock face being the thickest. Trying to dig out from here would take the most time.
Moreover, there were Formations all around. Digging would trigger these Formations.
These Formations could not be set off.
Lu Chengyun was also a Formation Master, and his accomplishments in Formation were not shabby.
It was fine as long as he didn't discover Mo Hua, who could make some alterations to the Formation without Lu Chengyun realizing right away.
But now, being right under his watch, it would be a rash move to tamper with the Formation, and Lu Chengyun would definitely notice.
Mo Hua also suspected that the Formations inside the Stone Palace were integrated.
Lu Chengyun would definitely use some method to monitor the entire Stone Palace's Formations.
Otherwise, it wouldn't have been possible for Lu Chengyun to detect him the moment he deactivated the Expose Dust Formation.
Deactivating the Expose Dust Formation was done intentionally to be discovered by Lu Chengyun.
Now, digging a tunnel had to be done without letting Lu Chengyun find out.
At night, after deceiving Lu Chengyun, Mo Hua concealed himself and went to several unoccupied rooms on the right side of the Stone Palace.
These rooms were empty and clearly freshly excavated. No one lived there, and there were no coffins placed inside.
According to Mo Hua's estimates, the walls of these rooms were the thinnest, making it the easiest spot to dig through, and what was more, there were very few Formations in this area.
It was the weakest point in the entire Stone Palace's Formations that Mo Hua had calculated.
Digging a small tunnel would be sufficient.
Mo Hua took out a little tiger.
This was a wooden puppet given to him by Old Kui, made of a material resembling wood but exceptionally sturdy.
The little tiger had a Spiritual Pivot Formation drawn on it by Mo Hua.
The Spiritual Pivot Formation was for control.
Apart from that, its limbs and teeth bore Sharp Gold Formations drawn by Mo Hua, which could make the puppet's limbs sharp and capable of piercing through mountains as easy as turning the hand.
Mo Hua wanted to use the little tiger to send a message.