Abel followed Bernie through the teleportation array to a teleportation array, which should be a secret place of the Goff family.

If you want to know how to transmit and enter through the transmission array and the short-range transmission array, you will not expose the location here. This is a general way to keep important regions secret.

Abel came to an underground area. The light came from a dozen fires around him, which reflected the whole underground area in red.

The underground area is very large, surrounded by stone walls, and the gouges on the stone walls can be seen. He was surprised to find that the underground area was probably directly dug by the dwarves.

The underground area is tens of meters high and hundreds of meters wide. It's a hall like room with more rooms on the side.

"Abel, this is a secret Research Office of our family!" Bernie smiled and introduced him.

He could see the surprise in Abel's eyes, which made him very proud. Moreover, the dwarves had never been open to the public except for the buildings on the ground, such as the underground caves, which were never shown to the public.

As long as these caves exist, the dwarves will not perish.

Dwarfs' ores and materials are all obtained from these caves. It is precisely because of countless years of digging that dwarfs have mastered how to build solid caves in the mountains and underground.

"Bernie, that's where the airship was studying that day. How can't you see people?" Abel looked around, but did not find any other dwarfs. It seems that this is an abandoned cave, so he asked strangely.

"This place is closed. The materials of the sky boat are ready, but the metallurgical materials of the main array are not available. Everything is nothing. This place becomes the material warehouse of the sky boat!" Bernie said.

"You asked me to help you refine the metallurgical materials of the main array?" Abel asked.

"Abel, come with me!" Bernie nodded, leading the way.

Then Bernie went to the other end of the hall. On the wall, there was a black gray stone with a height of about three meters and a width of about three meters, on which some ancient characters and patterns were carved.

Abel noticed that the most striking part of the design was a huge air bag and a boat shaped house. On the edge of the design, there were detailed drawings of every part.

He looked very quickly. He remembered all the structural drawings of the whole sky boat and found the metallurgical method of the main array material that needed his help.

As many as 88 different materials, after hundreds of metallurgical processes, the difficulty is many times more complex than any kind of metallurgical materials he saw.

"Abel, this is what we found when we dug the underground mine hole. After we found the construction method of the sky boat engraved on the stone, this place was closed by our family and became the material warehouse of the sky boat, waiting for the sky boat to fly to the sky one day!" Said Bernie, gently stroking the dark gray stone in front of him.

"The main array of metallurgical materials is very troublesome, I have no 100% assurance!" Abel looked at the metallurgical method of the main array material and said.

From that metallurgical method, he saw 88 kinds of materials, most of which were very precious. Some of them were not even heard of by his master blacksmith, and some of them, though they were only through books, had never seen real objects.

If we want to collect all the 88 kinds of materials, we will spend an astronomical amount of manpower and material resources.

Eighty eight kinds of materials, hundreds of processes, any step can not be wrong, which can make almost any alchemist despair.

And even Abel, who never makes mistakes, can't guarantee to be successfully refined once, because there are too many unknown materials in it.

"Abel, among the materials of the whole sky boat, the most precious one is the metallurgical materials of the main array. We dwarves have collected only ten of the eighty-eight materials for countless years!" Said Bernie.

Bernie also knew the difficulty of refining. He understood that if Abel could not refine the metallurgical materials of the main array, there would be no other alchemist to refine them.

When Abel heard that he had collected only ten pieces of materials, he hesitated, because even if all the ten materials were completed, he could only make ten sky boats at most.

What's the function of ten sky boats? If you want to build another transportation network, the number of sky boats you need is far from what ten sky boats can achieve.

"Abel, don't worry. It doesn't matter if you fail. If you don't succeed once in ten times, you can wait for decades at most. We will collect materials for refining." Seeing Abel's hesitation, Bernie thought he was worried about failure, so he advised him.

Abel couldn't help but be shocked. In any case, he didn't ask for all the success ten times. Look at Bernie's appearance. As long as ten materials are refined into one main array metallurgical material, he will be satisfied!

"Well, I'll do my best!" Abel said with a smile.At this time, he found that on the surface of the black gray stone, the construction method of the sky boat accounted for half of the space, while the other half was a relatively simple object.

It's a kind of weapon manufacturing map like a cannon on earth. From its description, it can be seen that it's a very powerful long-range weapon.

"Bernie, have you built this?" Abel asked, pointing to the weapon map beside him.

"Abel, that's magic stone cannon. It's a cannon made of magic stone. The Weapon Master of the family has studied it for a long time. This kind of magic stone cannon may be a very powerful long-range weapon in ancient times, but now it can't be made at all. Even if it's made, no one can use it!" Said Bernie with a wry smile.

"Why, in the description of the magic stone cannon, there is almost nothing to resist the power of the magic stone cannon, and it is different according to the level power of the magic stone. If the top magic stone is put into the magic stone cannon, who can live if the cannon goes down?" Abel asked curiously.

"Abel, you don't see that the whole gun body is made of master level metallurgical materials. No matter how hard the materials needed for the gun body are, there are problems with the use of the magic stone gun. According to the analysis of the Weapon Master of the family, after the magic stone gun is used once, the whole gun body will be destroyed, that is to say, it's a one-time weapon!" Said Bernie, shaking his head.

Abel can't help but take a breath of cool air. Is this ancient race crazy? He even set the magic stone gun made of master level metallurgical materials to have only one hit ability. Were there many master level metallurgists and materials everywhere in ancient times?

"War commander, do you know the magic stone cannon?" Abel's heart moved. He thought that the spirit of war command was the spirit of that era. He could ask about it.

"Elder, magic stone cannons were forbidden in ancient times. They were forbidden to be used in any battle, but at that time, many families would use them as their last resort to protect themselves." The war commander explained to Abel through his spiritual power.

Abel knew what the magic stone cannon was at this time. This was an atomic bomb like existence, powerful but only one shot. It was forbidden in ancient times.

However, he is very sure that if the magic stone cannon is driven by the perfect gem, its power must be much greater than that of the super explosive ball, because one is to detonate its own power to spread around, and the other is to enhance the explosion power of the perfect gem through the carved pattern of the array on the gun body, and then conduct directional and concentrated explosion on its explosion.

"What a pity!" Abel could not help sighing and saying that if this magic stone cannon is not a disposable item, it can be another killer mace if it costs money to make one.

"Abel, if you are interested, I can be the master. We have collected a complete set of materials for analysis and evaluation. This set of materials is still stored here. If you need it, it will be sent to you. Anyway, it's useless for us to keep it!" Seeing Abel's interest in magic stone cannon, Bernie said with a smile.

Abel laughs. He doesn't believe that any materials are useless. Master level metallurgical materials, plus other materials for making magic stone cannon, are extremely precious materials even if they are not used in magic stone cannon.