Al groped his way down the stone staircase, and when he touched it, the surface of the rock was rough and meticulous, as smooth as a polished mirror under the constant forging of the strong wind.

"How can this stone wall be so smooth?", Al asked, puzzled, "How do those monsters survive on such a hard surface?"

"I don't know, we dark elves have specially researched, the entire cave is made of whole rocks from top to bottom, not soft like a volcanic crater, I don't know why such a large cavern is formed, it's like using a spoon to cut a piece directly from the surface down. ", replied the nightingale quietly.

"As for those magical beasts, like vampire bats, they are born with sharp toes that are hard to see, and they can hang upside down on the stone wall without falling with their foot strength, and their toes can even be used as weapons. Creatures like the Rock Serpent, on the other hand, use their natural earth magic to carve passages through the stone walls for them to survive and reproduce. ”

"But even so, there are relatively few demonic beasts inhabiting this big cave, except for demonic beasts with limited intelligence and particularly ferocious such as the vampire bat just now, most of the demonic beasts will flee far away when they sense that a large army is passing by. This is the main reason why we chose this cave as the entrance and exit, after all, it is best not to fight in this treacherous terrain. ”

After months of adult exploration, coupled with the nature of the dark elves, the dark elves have become natural biologists in the underground world. In the boring process of repetitive mechanical repetition as she descends the stone staircase, Nightingale introduces El to the various creatures of the underworld.

"Due to the lack of food, there are not many creatures in the underworld, and the most common are lizards of all kinds. There are the most common four-legged lizards, as well as lizard monsters that can use all kinds of simple magic, such as the most common, the salamander that generally lives near volcanoes, and the earth lizards that live in various caves. and some uncommon mutant lizards, in short, they are so strange that even our dark elves can't recognize them all. ”

"I know, aren't the most powerful lizard cavalry of your dark elves riding mutant lizards? Al interjected.

"Of course, our lizards are much better than your human warhorses. ”

Even if he couldn't see in the dark, Al seemed to be able to feel the nightingale puff up.

"It's a pity that after looking at it for so long, the dark elves seem to be washboards, and there are very few proud twin peaks like the patriarch, is it because the dark elves generally lack nutrition, resulting in insufficient development. ", Al thought whimsically.

But Al was rotten in his stomach and didn't dare to say it. Although they get along well with the Dark Elf girls these days, and they will make fun of each other and make some jokes, if Nightingale knows that Al still has such dirty thoughts about her mother, it is estimated that there will be a bloody case here.

"By the way, why are you dark elves able to tame so many mutant lizards, isn't there a lack of food in the underworld?", Al asked, puzzled.

This is also the problem that plagued him in his two lives, the most abundant in the underground world is all kinds of mineral deposits, and the most lacking is food, so there are relatively few creatures of all kinds. This is also an important reason why the dark elves have been unable to win the war against the dwarves for a long time.

Otherwise, with the ability of the dark elves to communicate with the demonic beasts, combined with their innate magical talent and the powerful force tempered by their long lifespan, they would have become the kings of this underground world long ago, and the dwarves were not their opponents at all. Instead of needle-to-wheat like this, no one can help the other.

As for the feud between the dark elves and the dwarves, Al also happens to know something, which is also recorded in the collection of the Mage Association of Shenghui City.

For some unknown reason, the elves who originally lived in the Silvermoon Forest suddenly split into the Dark Elves (of course, Al now knows that it was because of the Big Bang). The dark elves are naturally afraid of the sun and can no longer live in the Silver Moon Forest, so they have to migrate into the underworld, which is at odds with the dwarves who have lived underground for generations.

From this point of view, in fact, the dark elves are still invaders, and the dwarves used to live well underground, but suddenly a group of uninvited guests broke into their territory.

Moreover, there is a shortage of food in the underground world, and there are few water sources except for those few dark rivers. In order to survive and develop, various conflicts naturally arose between the two races, and finally war broke out.

And the dwarves generally have a fiery and tough personality, and they love to hold grudges the most. And the dark elves attach the most importance to their clansmen, and they will never forgive the murderers of their clansmen. As a result, the contradictions between the two clans are accumulating deeper and deeper, and the blood debts are increasing, and it is not an exaggeration to say that it is a deep feud in the sea of blood.

In the process of the dark elves' attack on humans this time, the dwarves did not hesitate to sneak attack the rear of the dark elves after learning that the dark elves were empty, destroying a large area of fluorescent wheat production, which can be said to have dealt a heavy blow to the dark elves. It can be said that in order to weaken and fight the dark elves, the dwarves are doing everything.

And if it's the other way around, the same is true for the dark elves.

This is also a major problem that plagued El in his last life: how did the dark mages convince the two feuding races, the dark elves and dwarves, to join forces to attack the humans?

And how did the Dark Elves breed and domesticate so many mutant lizards? In the war of the last life of the El, the lizard cavalry of the Dark Elves was the most troublesome for human warriors.

These mutant lizards have strong lower limbs and can easily run and jump on uneven ground or in the mountains, without affecting their speed at all, which is far beyond the reach of war horses.

Another point is that mutant lizards are carnivores, they have extremely sharp teeth, and can easily bite through the arteries in the necks of horses, and if they are caught and killed, the war horses are by no means the opponents of these lizards, which makes the dark elf cavalry have the upper hand when facing human cavalry.

Of course, there are pros and cons to everything, and mutant lizards are also somewhat inferior to war horses.

The first is that the speed is not as good as that of war horses, after all, these lizards walk upright, and their upper limbs are relatively degenerate.

Secondly, and most importantly, these lizards are accustomed to the darkness underground, so they are photophobic. Therefore, when the dark elves send out cavalry, they should also try to choose at night or when the weather is dark.

The last point is that lizards are cold-blooded and cannot fight in hot or cold environments, and compared to lizards, homeothermic horses are much more adaptable to the environment.

However, there is no doubt that the Dark Elves' lizard cavalry is much better than the human cavalry in terms of combat effectiveness. These cavalry also added many painful memories to the El.