"The fastest way to do this is to analyze the comparison method. "Collect the soil from several other territories where the fluorescent wheat grows, and put it together for analysis and comparison." What they have in common may be the key to the growth of fluorescent wheat. ”

With that in mind, he began to dig away the dirt near a fluorescent wheat plant. Al's movements were extremely careful, as gentle as if he were applying makeup to a young girl's thrush, trying not to touch the fluorescent wheat roots that were gradually exposed and buried deep in the ground.

But the more he buried, the more surprised Al became, the roots of this fluorescent wheat were entrenched in the ground, intricately intricate, and the area occupied was so large that it looked like a scattered cloud from a distance.

And it is this huge root system, which can be called a huge system, that supports several solitary, slender and inconspicuous ears of wheat. At first glance, it is a bit strange, but when you think about it, you can't help but admire the perseverance of this plant.

Its efforts are extraordinary, so that it can survive in this extraordinary and treacherous environment and unleash its own light.

Al touched the outermost tendrils slightly, feeling a little wetness.

"It seems that the roots of this fluorescent wheat also have to constantly absorb water, so they grow next to the dark river underground, but I don't know how much water they need and whether they have to grow on the bank of the river. Al thought silently.

Al grinds the dirt with his fingers, feeling its texture.

"It's a little rough, it seems to have more particles inside, and the rest doesn't seem to be any different from ordinary dirt. Al analyzed carefully. He was a little irritable, and he wasn't a relevant professional, so he couldn't tell the difference between the dirt.

He grabbed a handful and put it on the tip of his nose and sniffed deeply. Suddenly, I felt that something was wrong, "It seems to have a special smell." He frowned and took another deep breath, carefully distinguishing but unable to distinguish it.

"Let the nightingale smell it later, the elf's five senses are far greater than those of humans, and she should be able to tell the difference. ”

Thinking like this, Al carefully filled in the soil again, walked to the dark river, picked up a puddle of clear water, and began to study the water quality.

"There are so many variables that can affect the growth of fluorescent wheat, water quality, land and even wind direction, air quality, etc., it is very difficult to find the most critical points. It's just that there are some things that have to be done, although they are extremely difficult.

Before the great horror of life and death, neither the dark elves nor him were qualified to shout "difficult".

It was because of this that Al took a sip of his heart. Dark elves can drink it, but it doesn't mean that humans can, and even if they have a poisoning reaction, it can be more helpful to judge the water quality.

The taste is a little astringent, and there is an indescribable bitter taste. Al knew that this was because the dark river flowed through a lot of ores, which inevitably contained various mineral impurities, and in fact the dark elves were very lucky to be able to drink it. Even if they are nature's darlings, it is impossible to be immune to mineral poisoning and various germs.

"It shouldn't be because of the water quality, otherwise the dark elves wouldn't have been able to find out for so long. Al continued to meditate, this process of searching for answers in areas that he was not good at and unfamiliar with was really unusually painful and frustrating.

Al felt like he was back in college, and as a liberal arts student, he was facing advanced math exams. He recognized the numbers and letters, but unfortunately the numbers and letters didn't recognize him, and the combination was as difficult as an alien script.

His thoughts were painful and long, and time passed imperceptibly, until the nightingale came to call him, and Al realized that he had been standing on the bank of the river for most of the day.

Nightingale looked at him like an idiot, "Why are you standing here stupidly? ”

Al looked around, and the dark elves who passed by looked at him as if they were rare animals, and whispered a few words from time to time. I can still faintly hear the child asking, "Is that human? Why do you look stupid?" ”

Only then did Al realize that he had inadvertently lowered the "impression score" of all humans, and he roared in a low voice in annoyance, "If it wasn't for you dark elves, I thought about it and my head was going to crack." ”

At the mention of the glowing wheat, the nightingale quickly remembered what was going on, picked up Al and ran towards the stone house in the clan. "Come with me, Mother wants to see you. ”

As he was walking, Al asked puzzledly, "You just said that I have been standing for a long time, how do you elves tell the time in this dark underground?"

Nightingale pointed to the fireflies that were constantly flying, "These little ones tell us the time, and the fireflies stop glowing every once in a while, about four times a day, and the time is both regular and accurate, even compared to your human clocks. ”

"Clock, have you seen our human clock?", he remembered that the little girl in front of him had the audacity to mix in human society for a while, and it was not strange that he had seen a clock.

The nightingale looked around, carefully took something out of her bosom, and handed it to Al.

"It's not a rare treasure, I have one. ", said Nightingale with a slight smugness.

Al took a closer look at it by the glimmer of the fireflies, and it was an ordinary iron pocket watch, without any logos or elaborate ornamentation, and it looked like a bargain from a roadside grocery store. Put it in your ears and you can hear the sound of "squeak" gears turning, which shows that the owner still cherishes it and is in very good condition.

"How do you have a pocket watch on you? I remember you two sisters didn't have anything around when you left?", Al asked, and suddenly remembered that he had given them a sum of money as a way to pay for the journey, but he didn't expect that this little girl would use it to buy all this mess.

"Hey, I've got some interesting little stuff there, I'll show you sometime. ", Nightingale boasted.

"Come on, don't forget that I'm also the biggest man in the human race, what is your little gadget. When I get out, I want to give you a pocket watch made by a famous artist, which is much more beautiful than yours. ”

Nightingale's eyes lit up, "Al, that's what you said, don't cheat." ”

As he spoke, he walked to the stone house in the center of the Moonlight Clan. Originally, according to the custom of the elves, they were used to living in trees or houses woven of shrubs and grass blades, but in this underground world, plants are more precious than any precious stones, gold and silver, and the dark elves can only build houses with stones that can be found everywhere.

Like the rest of the Dark Elves' houses, this stone house was ordinary, unremarkable, and unadorned on the outside, making it impossible to tell where a clan chief lived.