The gap in Catherine's memory made her lose her judgment of the geographical location. Luckily, based on what she saw and heard along the way, she roughly estimated that she was probably lost somewhere in the underworld.

There are two main reasons why Catherine can come to this conclusion:

One is that the demon king Bosetto Ifil appeared in his soul. The devils come from hell, and hell is supposed to be part of the underworld. Being able to come into contact with a devil means that there is a good chance that you are in the underworld.

The second is the memory sharing given to her by the Mud Elf King. The elven outcasts all entered the underground world in the end, and the mud elf king was imprisoned after coming to the underground world. The place where he was imprisoned was in the Kingdom of God, and although the Mud King did not say it explicitly, the Kingdom of God should also be in the Underworld.

Therefore, if the female mage wants to return to the surface world, she needs to find a way home in the boundless underground world. As the former ruler of the underworld, the Demon King is undoubtedly familiar with geography.

Of course, the routes that the demon king knows probably have a long history, and there is a question mark over whether they can still be followed. The underground world is now ruled by the demons, and even with the guidance of His Majesty the Demon King, it may not be easy to go back. What's more, Catherine also has to deal with all kinds of tricks played by this cunning big devil.

"How do I know you're not lying to me?" the mage didn't immediately agree, "How do you prove that you do know a way back to the surface world?"

"I can't prove it. "The Demon King is also simple, it is not convenient for the two sides to communicate at the moment, he must try to express it simply.

"The ladder of the abyss. The Demon King wrote again.

Catherine's mind immediately recalled what she knew about the Abyss Ladder. "Ladder of the Abyss" is certainly not an unfamiliar term to female mages. In "Rock Stealing", there is a more specific description of the ladder of the abyss, a super plant unique to the underground world.

"I looked at the stone pillar in front of me in amazement, and it turned out to be a plant. This sentence is very famous, and it is the first sentence of the "Escape" chapter in "Rock Stealing Travel". The great thief Dipu was able to escape from the hard stone abyss smoothly with the help of this abyss ladder.

However, "Rock Stealing" depicts the ladder of the abyss as a special kind of bridge connecting different underground worlds. This way of writing the novel later sparked controversy in the academic community. Some scholars believe that this is a completely wrong description, because today mankind has made it clear. The underworld is a complete territorial concept, and there are no different subterranean worlds to connect to, but other scholars believe that this is just an inaccurate non-academic narrative, or just the artistic language of the novel, the so-called "different underground worlds" in the book. Actually refers to a different abyss.

It's also in "Rock Stealing". For the first time, humanity learned of the existence of the Black Abyss. It is the domain of the most powerful demon lords in the underworld, and a huge ladder of the abyss grows out of the black abyss, connecting the different abysses. The demons pass through the ladder of the abyss. Travel through different abysses.

For a long time, the common understanding of mankind has regarded the ladder of the abyss as a single plant, that is, the only one. However, while bathing in Corner City, Catherine learns from goblin scholars that there are at least three Abyssal Stairways in the Underworld. At that time, she was still quite shocked in her heart, because it provided a new perspective for the study of the underground world.

At present, human investigation of the underground world is based on the abyss system connected by the ladder of a single abyss. If there are three different Abyssal Stairways, then the entire tectonic system of the Underworld may have to be re-identified and re-established.

Of course, Catherine does not study the underworld, but the Royal Academy has scholars who study this area. Be part of the Academy. Catherine is obligated to take back what she has seen and heard.

But where is the goblin scholar now? Is he still with As? As, the figure of that man comes to Catherine's mind, what is he doing now?

"The Abyssal Ladder is just a plant that connects the different Abyss, how will it help me to return to the surface world?" was a tentative inquiry, and Catherine hoped to get further accurate information from the Demon King's mouth.

The Demon King wrote, "Those who forsake the people." ”

Catherine put on a "sure do" look. As she expected, no matter which way you think about it. The ladder to the abyss of the outcasts is undoubtedly the best choice. Because that ladder to the abyss actually grew into the surface world. And as a friend of West Rum, Catherine shoulders the expectations of the Mud Elf King, including the imprisoned Green Wind who also needs her to rescue.

The Demon King is a very cunning and clever guy. With the help of reading the memories of the female mage, he specially listed the answers that matched Catherine's heart's needs.

"Do you know how to find the outcasts?" Catherine asked.

"Roaring City. "The Demon King already has a plan and a clear idea. He was certain that Catherine would not be able to refuse the deal.

"Black Dragons. ”

Although he wrote only words, Catherine could fully understand what the Demon King meant.

The Elven Outcasts clinged to the Roaring City built by the Black Dragons. to be able to gain a foothold in the underworld. Catherine had already had such a vague speculation when she was in Corner City, and her experience in the world of the Elven King finally confirmed this speculation.

After the Mud Elf King led his tribe into the underground world, as an alien race also from the surface world, it was natural for him to form an alliance with Roaring City.

However, after the Elven King was imprisoned, it was difficult for the Outcast Tribe to be on equal footing with Roaring City, which had established itself in the underworld. The equal relationship of alliance can only be replaced by a dependency relationship with priority and subordination.

The Demon King has dealt with the Black Dragons a lot, and knows the location of Roaring City. So find Roaring City, find the Forsakens through Roaring City, and finally return to the surface with the help of the Abyss Ladder of the Outcasts. This is the route that the Demon King has sketched for Catherine's way home.

It's a difficult plan to come to fruition, but Catherine thinks it's at least a plan to try. It's just that in the implementation of this plan, it is very debatable how much the demon king is willing to contribute. And Catherine has more concerns, the demon king in the soul cube is just a will in the soul of the demon king.

In other words, sooner or later, the female mage will have to face the real demon king - his first will, or other wills similar to the little rabbit in front of her.

But Catherine immediately laughed dumbly, how could she not be the so-called "second will" herself. Let the First Will deal with the affairs of the First Will, and she will do what she can do, and that will be enough.