Through the irradiation of the flashlight, David found that the completely transparent dragon egg was filled with a clear liquid, and in the very center, there was a trace of white flocculent about a centimeter in length.

This flocculent seems to be the embryo of the little dragon.

"Gollum, Gollum!"

When David was awakened by the sound of his stomach, he realized that he was hungry.

At some point, a small bonfire was lit in the cave, and on a wooden shelf above the bonfire, two skinned "Sasa" were strung together.

After the two monkeys had eaten and drunk enough, Mula picked up David, climbed up the small hole, pushed the stone slab back to the ground.

Under David's command, Muma collected a large number of twigs and dead tree trunks, some dried rattan sticks of rattans, and brought them back to the cave one by one.

Then he chose a vacant lot, dug up pieces of dry mud with wooden sticks, and sent them to the hole one by one.

Then he found the leaves of a plantain that resembled a plantain, rolled them up and tied them with thin vines to form a water scoop.

Finally, I found some dry bark and prepared it to make the leaves of the blower and smoke exhaust fan.

David chose the smoothest open space in the cave and instructed Muma to build a furnace and a blower.

First of all, the dry soil is mixed with water to form a lump of mud, and the mud is slowly enclosed into a large and small, barrel-shaped furnace with a diameter of half a meter at the bottom of the inner bottom, an opening of about 20 cm at the top, a height of about one meter, and a furnace wall of about 20 cm.

A small hole the size of a human fist was dug near the ground on one side of the stove to make an air inlet.

On the other side, a hole with a side length of more than ten centimeters was dug for placing charcoal fire and cleaning furnace ash.

Then I found a wooden stick with a diameter slightly smaller than the small hole, and rolled it into a half-meter-long "tube" on the wooden stick with mud.

Half a meter from the stove is made of mud, and then an object with a diameter of about 30 centimeters and a height of about 15 centimeters, which looks like a car tire, and on the side facing the stove, a small hole the size of a human fist is also dug, which is the shell of the blower.

The lid is made out of clay to make a flatbread-like lid, also about 30 centimeters in diameter, and a small hole of one centimeter is dug in the middle of the lid.

Using a thin wooden stick as the inner core and the clay as the outer surrounding, four sticks are rolled out that are one meter long and about three centimeters thick.

Use mud to make two straight bucket pots, one large and one small, and pinch two thick large rings on the upper edge of the pot.

A hollow plant resembling bamboo was found, connected with a section of mud, and one end reached into the entrance of the cave, and the other end was placed on the edge of the furnace to form a long smoke exhaust pipe, which was supported by many branches combined with long vines.

The smoke exhaust pipe is at the end of the furnace, and an "umbrella" is put on it, which is spliced with large leaves to form the umbrella surface, and the branches are used as umbrella bones, and the lower part of the "umbrella" is facing the furnace, and there is an opening the size of a pipe at the top, which is covered with the smoke exhaust pipe.

Select two pieces of dry bark, slowly cut them with a knife to form a large cross fan blade, cut a one-centimeter-thick wooden stick in half from the beginning, clamp the center of the cross fan blade, and then tie it with a thin rope made of rattan fibers.

Use a few pieces of wood to cut out several bearings of different sizes.

Using a long thin rope with large stones wrapped around the two ends of the egg, the wooden rods connecting the two sides of the fan blades, and the bearing set fixed to the wooden frame, through mechanical conversion, even David can pull the string to make the above cross fan blades rotate, and finally make a smoke exhaust system, so that when a large amount of charcoal is burned, most of the harmful gases can be discharged outside the hole.

After the above things are ready, put the charcoal fire in the furnace and blower that are still very wet, and wait for the outer walls of the furnace and blower to begin to harden, and then put the sticks, pipes, and pots made of mud in the furnace and slowly roast them.

The lid of the blower is placed directly on top of the furnace for baking.

Eventually, the above-mentioned clay was cearthed. The next step is to assemble and fire.

In the center of the ground inside the blower, a diamond tip the size of a quail egg is slowly ground to create a small hole in the stone that is one centimeter wide and one centimeter deep.

Two more pieces of dry bark are selected and slowly cut with a knife to form a cross fan blade with a stick, which is a little smaller than the exhaust fan blade.

One end of the stick on the blade of the cross fan is placed into a small hole in the blower, and the lid is closed, and the other end of the stick sticks sticks out about 30 cm from the lid.

Find a few large branches, build a sturdy shelf, the bottom of the shelf is pressed with a few large stones to reinforce, on the shelf is a 3 cm thick wooden stick, the wooden stick is in the center, dig a small hole of one centimeter, so that the stick sticks on the fan blades that stick out of the blower just pass through the small hole in the wooden stick.

Then use a long thin wooden stick, tie the string at both ends to form something similar to a violin bow, the string on the bow is wrapped around the stick of the fan blade, and the bow is quickly pulled back and forth, and the stick drives the fan blade to rotate back and forth, and the air flow is sprayed out from the mouth under the blower.

The blower is connected to the furnace with a terracotta pipe, and the joints are sealed with mud, so that these air streams can be sprayed into the bottom of the furnace.

In total, the "project" took ten Earth days.

When it was time to start the fire, David continued to teach Muma to put the thick trunk of a dead tree on the bonfire, so that it would slowly burn off, and then put it on a clay stick and put it in the furnace to the top of the furnace.

Thread a clay stick through the ring of the smaller pot and place the pot from the top into the furnace rack.

Take a lump of meteorite the size of a goose's egg and place it in a clay pot.

Find a slightly square stone to block the ash outlet of the furnace, and then keep pulling the blades of the blower to make the charcoal fire boil.

After six rounds of carbon change step by step, the middle and lower parts of the clay pot have been burned red, and the meteorite in it has finally begun to slowly melt into molten iron.

After feeling that it was about the same, according to David's guidance, Muma used several thick layers of leaves to insulate the heat, grabbed the ends of the clay sticks on the clay pot, slowly lifted the pot, and carefully poured the molten iron in the pot into the clay mold that had been kneaded before.

Wait for the molten iron to cool completely, the inverted mold is crushed, and the iron head of a hammer is formed.

"Jingle Bell!"

After placing a wooden stick that he had prepared earlier into a hole reserved by the hammer head, Muma excitedly used the first iron tool he had made to knock it around.

After another day, the two monkeys began to prepare for the craft of weapons and other tools.

First, choose a small cutting board the size of a small cutting board from the pile of meteoric iron, with a slight flat side on both sides, as the base for forging.

A few small lumps of meteorite are then melted and poured into a knife-shaped clay mold.

Use the half-cut wooden stick to pick up the knife blank that has not been completely cooled, beat it with a hammer, and forge it again after it is burned red many times, knock out a *** suitable for Muma, and then use the whetstone found before to grind the blade, and finally sew the scabbard with leather, and wrap the handle with a leather rope.

In the following days, in addition to making some kitchen knives, an iron pot with a diameter of about thirty centimeters, a red tassel spear head, and an axe, dozens of bows and arrows were made.

When Muma learned to shoot larger animals with a simple and crude bow and arrow, David began to think about making a more powerful crossbow.

In his impression, a crossbow is a bow equipped with an arm, which is mainly composed of parts such as a crossbow arm, a crossbow bow, a bowstring and a crossbow machine. Although the crossbow takes much longer to reload than a bow, it has a longer range, greater lethality, and a higher hit rate than a bow.

After instructing Muma to make a crossbow composed of wood, animal tendons, and iron parts, David, who was used to using firearms, still felt that the power of this crossbow was too small. How to increase its power, David thought about it for a few days and came up with a plan.

Traditional crossbows have only one set of crossbows and bowstrings, so why not put several more sets of crossbows and bowstrings on one crossbow arm?

As soon as he thought of it, Muma had a strong comprehension ability, and according to David's instructions, he quickly made a crossbow with three sets of crossbows and bowstrings.

Each time the crossbow is fired, the bowstring must be pulled three times, and once the crossbow machine is fired, the three bowstrings transmit the power to the only arrow at the same time.

This is equivalent to the power of three traditional crossbows, concentrated into one arrow. When Mulma tried it, it was so powerful that it could even nail most of the arrows into the trunk of a tree.

David's pistol was still in his backpack, but it was a very small gun for marmosets, and to make its bullets, even if it was only solid instead of explosive, it would require very sophisticated machinery and relatively pure metal consumables, and David himself was not confident that he would be able to do it quickly.

Therefore, David thinks that it is better to use his pistol as a template and make a larger gun suitable for "Kaka" and it is easier.

Of course, that would not be possible until the Kaka tribe went to the "Kaka" tribe, because to refine steel, copper, and gunpowder, Muma and his own strength could not be done, because it also required prospecting, mining, and building larger and more advanced furnaces.

In the days when he was making various weapons and tools, David would take a closer look at the Dragon Balls every day whenever he had free time.

To his delight, the embryo in the Dragon Ball has new changes every day, from leaving Zhuo Wu's body to now, more than thirty days have passed, the embryo has grown from a one-centimeter-long flocculent, gradually growing a head, front and back scratches and wings and other parts, and now has grown into a translucent dragon more than twenty centimeters long, with its eyes closed and coiled in the cloudy liquid in the transparent eggshell.

Xiaolong's facial features and body are exactly the same as Zhuo Wu's, but they are many circles smaller.

After more than ten days, David and Muma, who were sleeping in a platypus skin sleeping bag, were awakened by a slight "click".

The two monkeys glanced at each other, immediately understood, and quickly got out of their sleeping bags and rushed to the Dragon Ball to check.

At this time, the little dragon was already full of gold, and a crack was cracked on the dragon egg, and the liquid in the egg was slowly oozing out.

The little dragon, whose eyes were still closed, seemed to know that he was about to break out of the shell, and twisted his body vigorously to open the transparent eggshell.

After a while, the cracks in the eggshell were getting bigger and bigger, "Click! "Smack! After a loud sound, the eggshell split in two, and the wet golden dragon stood between the two eggshells with four claws, shook the water droplets on its body vigorously, and then opened its eyes and looked around.