The group of decorators had a headache about a crack not far from the warm hall, which was filled with animal bones that had been stored for a hundred years, because there was an upward wind here, and the garbage discarded by the three sisters of the Huang family was thrown here.

Although they are regularly burned with grease, the bones cannot be burned at all, so that more and more of them are piled up, and they become mountains of bones. When Zhang Yi found this place, the scorching smell he smelled was transmitted from here.

These people wanted to burn it completely with diesel, but they were afraid of polluting the environment, so they delayed doing it.

After Zhang Yi finished carving the runes, he saw that they wanted to use diesel, so he said, "This place really needs to be cleaned up, leave it to me." ”

The leader named Sun Jifu smiled and said, "Just leave this kind of dirty work to us, where do you want Teacher Zhang to do it?"

He is a doctoral student of Yu University, and he was sent to decorate this place when he was carrying soil in Wuzhi Mountain, and they are all old men from Tianhe Dojo, and they have great respect for Zhang Yi.

"Look, I've got a trick up my sleeve to burn these bones. Zhang Yi took out more than a dozen jade stones from his bag, held them in his hand, and quickly carved the arson rune array.

Then he jumped into the crack, set up a burning array, and came up to warn them;" I'll let you go down, and you'll go down again to clean up the ashes. Don't go down until I'm done burning. ”

Although there is no fire now, the formation has been activated, and those who go down will be roasted dry.

In the next few days, Zhang Yi began to wander around the cracks in the mountain, and with the help of his divine sense, he checked all the cracks around the warm hall.

Except for the passage to the earliest entrance, which was artificially dug by someone, the others relied on this passage to make caves through cracks, and at first glance they were excavated for prospecting, and these caves had no value.

This prospecting channel, the mountain is horizontally opened, which is equivalent to stringing the cracks together, so there are many cracks in the mountain, which cracks have lived in the people, it is really impossible to distinguish, the black light is blind and the fire is difficult to find, it is very dangerous to change people, and if you don't pay attention, you will fall into the cracks.

Zhang Yi, a doctor of archaeology, is very happy, this is the ancients mined crystals 10,000 years ago, and was transformed and lived by cultivators for about a thousand years, and then became the secret base of the Huang family.

Zhang Yi's guess is based on this, because the portal dug later and the hall carved into the hall by using the fire well are all traces of about a thousand years, and the tools used to dig are much sharper, looking at the neat incision, Zhang Yi knows that it was a cultivator who did it, and ordinary people can't cut that kind of axe mark.

Whether it is an ancient person or a cultivator, there may be cultivation exercises that Zhang Yi needs.

Zhang Yi's archaeology was to find exercises, but after a week, he found nothing. It has been inhabited for nearly a hundred years, and even if there are traces, they have been smoothed out.

When Zhang Yi went down to the burning crack and took out the jade henge, the mountain of bones more than ten meters high had turned into black ashes, spread a very thick layer, and Zhang Yi said to them: "Get it out and sprinkle it in the vegetable field, this is a good fertilizer." In this crack in the back, I'll go in and take a look. ”

Zhang Yi's divine sense swept to the crack that was only revealed when the bone mountain burned out, and it was very deep inside.

Originally, the cave was here, it was the end, which was not consistent with the half of the mountain outside, Zhang Yi knew that if he wanted to go over to find it again, he could only do it from the crack behind the bone mountain, the position of this crack should be low, and there was a cold wind blowing up from below, and then it would float up all the time, and the smell would not run around, so it would be regarded as a garbage dump.

Passing through the narrow underground passage, Zhang Yi was three hundred meters away, and saw another big crack, from the two sides of the crack where there were axe cutting feet, Zhang Yi knew that there should be more halls in front.

Zhang Yi walked forward for dozens of meters and saw a platform in front of him, and a portal behind the platform. However, Zhang Yi did not go over first, but climbed up directly along the crack.

On the side of the crack above the head, there are three holes like large niches, which are invisible from below, and Zhang Yi swept them with his divine sense, and there are three corpse skeletons inside, all of which have been in a meditative posture.

The three masters deliberately made the hall in front of them in order to attract attention, but they themselves sat in the niche of the mountain wall.

The temperature was very low, and the three corpses were not decomposed, they were wrapped in broken black leather on the skeleton, and two of them could still see the broken robes.

Zhang Yi minded another person, black and swarthy corpse bone money, placed in an ax, look at the width of the axe, is the axe used to dig this cave, the appearance is very strange, one day big and one small, the big head is very thin, and there is a little arc, although the hemp rope tied in the middle is very primitive, but this hand axe definitely belongs to the industrial product.

Zhang Yi deliberately turned the flashlight on and observed it carefully.

All three corpses had something in front of them, a hand axe, a parchment, and a sword.

Zhang Yi slowly picked up the sword and slowly began to draw the sword, but the skin scabbard was corroded severely, and suddenly it turned into powder, and the handle of Zhang Yi's sword was also broken, leaving only the black handleless long sword.

Zhang Yi grabbed the sword with his fingers, and he started very lightly, this is a magic weapon, and the ancient sword immortal used true qi to cultivate it.

After the real magic sword is fed with true qi, it will produce sword rays, and it looks like the sword will become wider and longer. As for the magic sword that can become bigger, and the sword fairy can fly standing on the sword, it is all an illusory legend.

Zhang Yi held the sword and tried to input the true qi, and a six-inch-long blue sword light appeared at the tip of the sword, the sword light was a gold energy body, very sharp, and it was not an exaggeration to say that it was indestructible.

Zhang Yi was indifferent to the sword, and was ready to go back and make a new sword handle and leave it to Tang Ru.

When Zhang Yi reached out to pick up the axe, he didn't pick it up.

When my fingers approached the hand axe, I didn't feel the cold, but as soon as my finger touched the hand axe, I could feel the chill, which was colder than the meteorite of the year, and it was very heavy.

Zhang Yi took out tactical gloves from his bag and put them on, and then grabbed the hand axe in his hand, just weighing it, Zhang Yi knew that this hand axe was 421KG, and Zhang Yi felt hard to grasp it.

No wonder it is very easy to dig a cave with this hand axe, the front of this hand axe is very thin, and the weight is so heavy, the person who can hold it in his hand must have a lot of strength, and this mountain formed by volcanic lava can be cut as tofu casually.

According to the shape of the hand axe, Zhang Yi knew that the hand axe was removed from the barrel, and by making up for it, he calculated that the barrel was about four meters in diameter, and the hand axe was just put together into a barrel shape by three hundred and eighty pieces.

Seeing the steps on the top of the hand axe and the two screw holes in the middle, Zhang Yi felt that this hand axe should be the flame vent of the aircraft, which is a metal part compressed by a special refining method, because the molecular gap becomes smaller, it is cold, and a large amount of heat absorption will not melt, which is very suitable for the nozzle of the aircraft.

After Zhang Yi picked up the meteoric iron, he thought of the compression refining method, Tianhe Dojo has made a breakthrough in compression refining, and the meteorological satellite that is about to be sent to the sky is carried by a new rocket, and the flamevent of the rocket is compressed metal. A tungsten-manganese alloy of the same size as a hand axe would weigh 36 kilograms, twice as much as a gold nugget of the same volume.

The refining level of this hand axe is too high-level, and it is ten times heavier than the compressed metal refined by the Tianhe Dojo.