Alchemy is a very mysterious and complex discipline that has existed on the continent of Moya for at least thousands of years. Alchemists believe that there is a mysterious and powerful substance in the universe - the "holy stone", which can make metals, ores and other substances magically change, so that people can live forever and life is eternal. The world has the impression that alchemists have mysterious superpowers, they are mysterious and sparsely numerous, and they are always secluded in some corner doing incredible research. Alchemy is actually a branch of alchemy, which is just refining metals, minerals, and plants into elixirs.

Of course, Sang Nan does not believe in the theory of alchemy, which "can make elixirs", as far as he knows, the longest-lived alchemist recorded in history only lived for 238 years, but he very much agreed with the theory of material composition proposed in alchemy, and in order to find the mysterious sacred stone, alchemy formed an independent system, involving complex knowledge such as medicine, physics, chemistry, astronomy, philosophy, etc., and many great alchemists were good at using various means to purify and synthesize minerals.

Looking at Gongye Han and Runye, Sang Nan narrowed his eyes slightly, and said with a smile: "Let's go forward, if we can find a water source, we can simply build a workshop here and open a furnace to refine the army!" What do you guys think? ”

"I will live up to my son's expectations!"

Gong Yehan and Runye were overjoyed when they heard this, and hurriedly thanked Sang Nan. Being able to create a world-famous divine soldier is the lifelong goal of every craftsman, and they are naturally no exception. Now that the opportunity for success is in front of you, how can you not be happy?

However, those alchemy sages of ancient times, if they heard that Sang Nan planned to use the great alchemy to strike iron, I am afraid that they would also jump out of the sky and the earth to scold the street.

Next, the group divided into two teams and began to continue to explore the underground space. Sang Nan, Mei Jingfeng, Mei Dongen and the members of Li Ying walked in the front, and the others were 50 meters behind, leaving marks along the way to facilitate Li Yuanru and others to find them.

Because it was probing and advancing, the speed of walking was not fast, and everyone stopped and stopped, probing very carefully, so they soon had harvests, such as ice berries, winged ginseng, black monks, ghost baskets, phoenix feather grass, and ten thousand years of grass......

Everyone found that the environment of the cave space was completely different from the outside world, and there were so many precious plants that if there was a medicine master here, he would definitely go crazy! Because it was inconvenient to store them, Sang Nan did not pick these herbs for the time being, but asked Mei Dongen to take people to leave markers.

According to the records in the ancient books, Gongye Han and Runye also found four or five kinds of rare ores, as well as those beautiful crystals on the top of the cave, although they didn't know what they were, they shouldn't be ordinary, and their faces were full of excitement when they thought that there were so many ores for them to study.

However, Sang Nan found a strange phenomenon, that is, there seems to be no wind in this space, and all the plants along the road are standing quietly in place, not moving at all, like petrified sculptures, there is a sense of indescribable weirdness.

After walking for about ten miles, a dark dense color could already be faintly seen in front of him, as if it was a dense forest, but Sang Nan suddenly stopped at this time.

"Do you hear the water?" He asked suddenly.

Everyone hurriedly listened attentively, but found nothing.

Only Mei was shocked and looked at Sang Nan in disbelief, he had just heard the faint sound of water flowing, but it was half a beat later than Sang Nan.

What a keen hearing!

"There's a water source up ahead? That's great! Gongye Han and Runye, who came from behind, heard that there was water in front of them, and they immediately became happy. It seems that their plan to open a furnace to smelt iron here can be put into practice.

The temptation of the water was undoubtedly enormous, and the group walked happily and quickly towards the front.

This is a very vast forest, when everyone stands in the thick shade of the edge of the forest, you can appreciate how tall these trees are, more than 40 meters high trunks, thick and several girths, the canopy of the canopy is like clouds, lush. However, these giant trees grow very thickly, blocking the insufficient light in the cave, and the surroundings appear extremely dark, giving people an eerie and clammy feeling.

"Wow! There are so many mushrooms here! Mei Dongen's eyes were full of brilliance, and he pointed his finger at Rinnai and exclaimed. Among the group, she is undoubtedly the most accustomed to and adapted to the environment in front of her.

Everyone followed the sound and saw that there were many huge mushrooms growing in the forest, these mushrooms were four or five meters high and three or four meters in diameter, and thousands of them were growing in clusters under the shade of the trees, which could not help but remind people of the kind of dome umbrella that the emperor held up when he traveled.

"I see, these are Lingsong! It's an ancient plant that's extinct! Sosa suddenly exclaimed: "It seems that this place is isolated from the world, the temperature is suitable, and there should be a lot of ancient plants preserved!" ”

"To be precise, there should be a lot of ancient animals!" Sannan opened his mouth to correct.

"Why do you say that?" Sosa asked in confusion.

"Look at these bones under our feet!" Sang Nan said with a solemn expression.

"Bones?" Sosa's eyes widened as she looked at a dead branch under her feet.

"Oh my God! It's really a bone! ”

"Is this a tooth?"

……

Only then did everyone notice that these rotten logs scattered everywhere around them were actually huge dry bones! From the sharp teeth, it was clear that its owner was not a good and gentle person in his lifetime, and judging by the size of the skeleton, if these creatures were alive, they would definitely be larger than any terrestrial beast they had ever seen!

Mei Dongen frowned, the pretty face that was full of surprise just now had already appeared pale, and those young guards were constantly looking around, revealing the nervousness in their hearts!

All the sounds seemed to disappear at once, and the surroundings became silent!

"Don't worry, these are just the bones of beasts from a long time ago, and they won't suddenly jump up and bite you now!" Seeing everyone's reaction, Sang Nan smiled and teased: "And it's been a full five hours since you came in, aren't you hungry?" ”

When everyone heard him say this, it seemed that they had just returned to reality, and they suddenly felt empty and hungry.

Seeing that the success had distracted everyone's attention, Sang Nan called Qiu Ye again: "Find a place to start a fire, let everyone rest first, and wait for Big Brother Li and them to come over, and then we will continue to investigate!" ”

Qiu also responded, and then took Li Ying and the young guard to start setting up tents, Gong Yehan and others also went over to help, they were quick with their hands and feet, and it didn't take long to set up ten camp tents, and cut some branches to make some antler barriers, and surrounded the camp tents. For the owners of the skeletons, these antlers are nothing, but they are better than nothing. Dinner was very simple, after the salted dried fish and dried meat were roasted on the fire, it tasted very good, but remembering that the surrounding area was full of bones, everyone had no appetite, and they just barely ate a few bites to replenish the consumption of physical strength.

However, under the horrified gaze of everyone, Sang Nan ate three pieces of fish, four pieces of venison, and eight pieces of bread, and then he burped and returned to the camp to ponder.

Sosa is right, the species form here seems to have remained in ancient times, indicating that there is probably an ancient human civilization here, but they have not found any traces of human activity until now.

Moreover, the temperature difference between the inside and outside of this cave was extremely large, and he was wearing a cotton robe at this time, and he already felt a little damp and hot, indicating that this place must have been affected by the fire veins, but he did not find a trace of the existence of the fire veins around.

"Is the answer deep in the forest? It seems that this place is not that simple! Sang Nan was secretly vigilant in his heart.