It was getting dark, and Sosa's forces were fully assembled.

"There is also day and night in the underworld?" Li Xuan asked Sosa.

Sosa nodded and replied, "The light of the underground time comes from an underground plant called 'Dolan', which can be found everywhere in the entire underworld, from the ground to the walls, and then to the very top place on our heads, 'Dolan' is very vigorous, and reproduces unusually fast, resistant to high temperatures, low temperatures, and flames. Of course, the most important thing is that Dolan will shine. Sosa said slowly.

"Dolan's glow is regular, from no light, to a slow shimmer, to the maximum light, once a day, the time is basically the same as the time on the ground. ”

"Amazing plant. Li Xuan nodded and commented.

"Many scholars have studied Doran, but have never been able to find out why. Sosa said.

Li Xuan didn't continue to speak, and a carriage had already driven over and stopped in front of several people.

Sosa smiled and made an inviting gesture to Li Xuan, motioning for Li Xuan to get into the carriage first.

Without hypocrisy, Li Xuan boarded the carriage directly.

Then Sosa followed and finally Sedlos.

Many of the people accompanying the army were speculating about Li Xuan's identity when they saw this scene, and none of these people had seen Li Xuan's spell casting outside of Sosata in the surface world.

After the carriage door is closed.

"What preparations have you made?" Li Xuan slowly asked Sosa in front of him.

Sosa smiled and asked Li Xuan, "What do you think you need to prepare to slay the dragon?"

Li Xuan thought for a moment and replied, "Ballista?"

Sosa smiled.

"I said something wrong?" asked Li Xuan.

"You're right, but the ballista and the chain can only serve some support. A large number of griffons and magicians are the protagonists. Sosa replied.

"Have you ever slain a dragon?" Li Xuan glanced at Sosa deeply.

Sosa nodded, not in denial.

"We once tried to occupy an ownerless dragon's lair, and fought against a group of seventh-order underground flaming red dragons......" Sosa's voice was a little slow.

"Succeeded?" Li Xuan keenly noticed some differences in her tone.

Sosa was in a trance, and after a long pause, he slowly replied: "That battle, the time was very short, dozens of high-level mages were wiped out, hundreds of royal griffins died finely, and finally ordered a retreat. ”

"There are a lot of dragons?" asked Li Xuan.

Sosa shook his head and replied: "We were attacked by nine underground flaming red dragons, these cunning red dragons, constantly hovering over the underground world, after killing the griffin first, divided into three directions to attack us, under the flames of the dragon, only archers and ballistas can barely fight back. ”

"The low-flying red dragon spewed terrifying flames along the way, and under the terrifying flames, the steel was instantly melted into molten iron. After a few attacks, the entire army began to fled. In the end, it turned into a major rout, and in desperation, he could only announce a retreat. Sosa's voice was heavy.

"What about those high-level magicians?" Li Xuan opened his mouth to question.

"Low-level magic does no damage to the red dragon at all, and it is extremely difficult for high-level magic to lock on to the fast-moving red dragon, and when they sense that they are locked by a high-level magician, these cunning red dragons will fight back or flee as soon as possible. Sosa explained lightly.

Li Xuan frowned: "The wisdom of these red dragons ......"

In a deep voice, Sosa said: "Before the battle began, these red dragons sneered at us, and after our defeat, they also chased and killed along the way......

When Li Xuan heard this, his brows furrowed deeply.

Powerful, intelligent dragons? That doesn't sound like good news.

"What about after that?" asked Li Xuan with some solemnity.

Sosa shook her head and replied, "After that, the Empire never thought about the Dragon's Lair again. ”

Li Xuan looked at her and asked incomprehensibly, "Then how dare you send troops to the sulfur cave?"

After pondering for a moment, Sosa looked at Li Xuan's gaze sincerely, and said, "We have done a lot of research on this sulfur cave, and many scholars have learned about the characteristics and weaknesses of the poisonous dragon that are different from other dragons through various materials and the knowledge of the underground world. ”

"Again, we only had a little thought about this sulfur cavern, but when we saw you, it was like a crazy Dolan, and it couldn't be contained. That's why I told you about the Brimstone Cave. Sosa said calmly.

"......" Li Xuan looked at her silently.

"If the rumors are true, then the poisonous dragon is much more powerful than the red dragon. But for humans, it's much easier to deal with. So I believe we have a great chance of being able to conquer these poisonous dragons. Sosa said.

"Before you get to the Brimstone Lair, tell me about the poisonous dragon. Li Xuan mentioned to Sosa.

Sosa pondered for a moment and said to Li Xuan: "Regarding the poisonous dragon, we don't have much information we have gathered, most of it describes its powerful strength, terrifying toxins, and flexible and fast flight speed. The only weakness is that the dragon is not very resistant to lethal magic. ”

Li Xuan sighed, slowly looked at Sosa, and said, "What I mean is that I hope there will be more intuitive data to let me clearly understand how powerful the poisonous dragon is. ”

Sosa was stunned for a moment and asked, "What kind of intuitive data are you talking about, such as?"

"For example, how big is the poison dragon, how fast it flies, how fast it is. How strong is its vitality, how strong its defense is, whether the ballista can shoot through its skin, etc.......," Li Xuan replied slowly.

Sosa's gaze at Li Xuan slowly became a little complicated, she didn't expect Li Xuan to ask so many questions.

After pondering for a long time, Sosa replied, "The body of the poisonous dragon is a little larger than that of other dragons, and it is significantly larger than that of the black dragon. Both offensive and defensive are more ferocious and terrifying than other underground dragons. ”

"And the poisonous dragon's attack has a weakening attribute, which will corrode the opponent's skin, this kind of re-corrosiveness is terrifying. ”

"My people have seen these poisonous dragons a few times, these poisonous dragons are amazingly large, and their complexion is a strange earthy yellow, crossbow arrows and bows are difficult to break the defense of poisonous dragons, but magic can really hurt poisonous dragons. We sacrificed several mid-level mages for this. Sosa explained to Li Xuan in a deep voice.