Li Mu's MC series cards are only the lowest star, and they were originally made to see if there are any precious minerals in the underground of this world, but unfortunately Li Mu's luck is not very good, and he has not gained much from digging most of the school.

These MC items are not very strong in this world as weapons, but they are very fast when used to destroy buildings and the like. If it weren't for the low level of these cards, he would have stabbed the door with a pickaxe just now.

"Hey, it's a pity that there is no Internet in this underground, otherwise it would be safer to stay for a few more days." Li Mu rested for a while, and when his mental power returned to normal, he began to make cards.

"Oops! Those two people forgot to bring them back......" Li Mu jumped up directly from the ground.

After seeing the decay of those two scraps just now, he was busy getting out of the predicament, and then he added Saber's self-assertion to mess up his mind. When I finally left, I left the two scraps directly.

Li Mu hurriedly opened the map, and if the representative person on the map knew Li Mu, the name would be marked there.

"It's okay, it's okay, I shouldn't have been dragged for interrogation yet." What Li Mu didn't know was that the two old men were in a very bad condition now, and their spirits were a little broken, so they couldn't ask anything at all. Coupled with the destruction of the building, the people in the institute had no choice but to detain them first.

As for the place of detention, it really happened that it was the prison where the card beast was held. The institute is a serious institute and does not conduct any human experiments, so there is no place for prisoners.

"It seems that I was born to work hard, and I will be busy again tonight." Li Mu wanted to cry without tears, and originally planned to sleep first after making a few teleportation cards.

When everything was done, it was already two o'clock in the evening, Li Mu first teleported all the Kaxiu sent to other worlds back in the process, and after comparison, it was found that not all Kaxiu had become old, and one or two had almost no changes, or the changes were not big enough to be seen. After all, it's only been a few days since the last incident.

Li Mu was a little strange, his world timeline should be the same as the two-dimensional world, and he had already known this from the mouths of his entourage. Now it seems that this rule doesn't apply to things that teleport from the card world to the two-dimensional world.

Li Mu left a few old Kaxiu, and the rest were sent back to the two-dimensional world, and he wanted to estimate the true flow rate of the two worlds according to the aging situation of these people!

As for these old Kaxiu, Li Mu can only say sorry to them. Then they became teleportation rings......

However, since Li Mu still has other cards to make, these rings are just made of two-star blood sacrifice cards as before.

In the following time, Li Mu made another magic sword that had been blown up by the black card before, and then upgraded the shovel and pickaxe to three stars.

The three-star MC props are like being strengthened and enchanted to open the administrator privileges, and the excavation speed is terrifying, so that Li Mu can use the Escape Technique in the future.

Li Mu just waved lightly, and the stones of more than ten meters in front of him turned into small stones, and Li Mu found them very interesting, and they were all collected. I don't know if I can use it to build a floating city.

Li Mu followed the direction of the map and kept digging towards the research institute, and then he was a little tired and simply asked the big bulb to help dig, while Li Mu himself was holding a bottle of drink and singing leisurely behind him, without any nervousness of sneaking in.

"Pickup ~ Pickup ~ " Pikachu is very interested in this new toy, and is excited to run and dig, looking stupid to compete with the digging speed.

After Li Muyi corrected the route several times in a row, Pikachu stopped a little.

"It's almost there, slow down."

"Pikachu......" Pikachu stuck out his tongue mischievously, then picked up speed again.

When the two of them dug to the edge of the institute and saw the outer wall of the institute, Li Mu took over the tools, and now they can't let Pikachu mess around.

Li Mu first dug down the outer wall, and when he dug the foundation, he dug from under the foundation towards the place where the two people were.

"That's pretty thick."

Li Mu looked at the map, and the vertical Z coordinate here was nearly ten meters different from the Z coordinate in the prison at that time, but this was not a difficult task for the newly made pickaxe at all.

Li Mu did not rush to dig, but controlled the power and slowly dug up little by little. Sure enough, when Li Mu dug to the floor, there was a dense layer of lines on the bottom plate and I didn't know what it was for.

Li Mu found a position without a line, poked a small hole out, and then used the Eagle Eye and the stealth card at the same time through the small hole.

In this way, you can kill those two people without knowing it.

Hawkeye ignored the guards in the distance, came to the cage of the two, and directly cut off all the cages with people. Li Mu took it back before Hawkeye showed its form, and then hurriedly filled in the passage.

When the guards arrived, they only saw a small hole in the ground, and when the others broke the ground soon after, they were faced with the foundation that had been filled in by Li Mu.

When leaving, Li Mu changed directions, this time he was digging a pit and filling in the pit, even if the group of people used the underground detection cards, they also discovered the passage dug when they came, and it was almost impossible to find Li Mu.

"Khooth!" A crisp sound made Li Mu a little surprised, there is nothing that can be found in this underground that the three-star golden pickaxe can't handle, if there is...... It must be a very strong rare metal!

Li Mu's eyes suddenly brightened, but he was a little stunned when he saw what was in front of him.

"It's ...... Bone? Li Mu touched the object in front of him that was as white as jade and smooth as a mirror and guessed.

The curious Li Mu carefully hollowed out all the surrounding areas along its outline, he wanted to see what kind of creature bones this was, you must know that the history of El City has been thousands of years, and this bone can still be maintained like this, it is definitely not simple. I might be going to have a lot of luck today.

Li Mu dug for three whole days, not that the bone was too huge, but that there seemed to be some kind of mysterious energy on the bone, and the digging speed of the pickaxe around the bone was greatly reduced, and the consumption of Li Mu's spiritual power was also doubled.

In order to save spiritual potions, Li Mu chose meditation to recover. After all, this is also a method of cultivation, and it is still necessary for Li Mu, who has an unstable foundation, to carry out spiritual cultivation. Otherwise, his spiritual power still doesn't know when he will be able to improve his quality to the point where he can advance.

After all, props or something can only raise his upper limit to a bottleneck, and cannot improve the quality of mental power.