The Witcher: Son of the Planes.

There are many entrances to the underground world, some are relatively fixed and some appear temporarily, and some even disappear temporarily.

Colin did not take a detour through Barna Town when he entered the underground world this time. There was an entrance less than a day's journey outside of Griman College. This entrance was also a common passage for people from the underground world to trade at Griman College.

Because of the long period of stability, the passage here has been renovated very thoroughly. Not only has the passage been further widened, but many places on the road inside have been paved with long stones. There are also light sources everywhere on the walls on both sides, all of which show traces of human modification.

Of course, on Griman Island, not far from the academy, the only one capable of building these is the Holy Tower behind the academy. The connection between the surface world and the underground world is convenient for not only individuals and certain forces.

The biggest beneficiary is Griman College. After years of development, the area near the entrance has become a place similar to a market town. There are not many shops in the market town because it is very close to the college. With Kung Fu, who would think it is too far to buy things in the market outside the college?

However, some basic supplies are still available, and regular services such as accommodation are also provided. However, the most profitable business is the carriage and horse business between the market town and the college.

Based on the principle of whoever builds it benefits from it, all the shops in the town belong to Griman College. The tolls at the entrances and exits are also collected by people sent by Griman College. Although only one wizard coin is collected each time, if you know that there are at least hundreds of people passing through every day, you will not underestimate this fee.

Then there is the only carriage and horse shop between the town and the college. Yes, you guessed it, it is an exclusive business belonging to Griman College. Not only does it cover a large area, but it also has thousands of carriages and horses. The one-way fare is also a wizard coin, or you can pay with items of equivalent value.

Who is Colin? He may be far inferior to a formal wizard, but among a group of wizard apprentices, his financial strength is definitely that of a big shot.

Although running a few steps could not only save money but might even take less than a day, Colin, who was "not short of money", still chose to take a car, um, a Larronhorn carriage.

After arriving at the market town, Colin did not stay long. He immediately paid a wizard coin and entered the passage.

There were many people coming and going in the passage, and there was a resting place similar to a "service area" every fifty kilometers. However, Colin, a mid-level knight squire, was in decent physical condition, so he did not stop and just kept walking down.

……

A day later, Colin stood on the first level of the underground world. If he took a detour through Barna Town, he might not have to spend any money, but he would definitely waste several times more time.

At the entrance to the first layer of the underground world, it has actually been built into a village. However, both in terms of scale and area, it is much smaller than the surface world. It can be seen from here that the builders here are not as strong as those of Griman College.

Fortunately, there was no checkpoint here and no one charged, but after seeing Colin coming down, they looked very emotional and soon many underground humans gathered around him.

"Hi, hello, is this your first time here? Do you need a guide?"

"I have been working on the first floor for more than ten years. I am definitely the best guide. No matter where you want to go, you can choose me."

"Forget it, don't trust him. Be careful not to take him to some shady store and try to trick you into buying local specialties."

"Choose me. I have five years of experience as a guide. I am familiar with the ground on the first floor. Where are you going, sir?"

"Choose me..."

"Choose me..."

"Shut up, everyone, shut up." Colin, who was annoyed, shouted and released the aura of a quasi-level wizard apprentice.

Everyone felt a cold wind blowing around them, as if they were being stared at by something, and they couldn't help but take several steps back.

Colin had a headache and didn't know who to choose. He came here to buy the heart of the underground bat, or to find out where the underground bat appeared.

After looking for a long time, Colin suddenly found a hooded man not far away, who was somewhat out of place with the people around him. Okay, it's you.

"Hey, you over there, come here." Colin said, pointing at the hooded man.

Hearing Colin calling him, the man walked towards Colin.

As he walked over, the people around him spontaneously left Colin, and some even turned around and left.

Colin was a little confused as to why, but when the man came closer, he saw that he was an underground elf.

"Are you a guide too?" Colin asked.

"Ah."

“How much will it cost?”

"One wizard coin every two days."

"Hiss, so expensive?" Colin hesitated.

"I'm expensive for a reason. Not only can I be your guide, I can also be your bodyguard. If you hire me, you'll have less trouble."

Hearing this, Colin immediately became concerned. After all, no one wants to get into trouble.

"Okay, it's you."

Seeing that Colin had signed a contract with that man, the people around him dispersed and went to surround someone else.

"To facilitate communication, please tell me your name. Oh, by the way, my name is Colin."

"Akona."

"Akona, I want to buy some things, where is the nearest town?"

"Well, about three kilometers along the current road, there is a small town - Samoa City."

"Okay, let's go."

As a guide, Akona naturally took the lead. At this time, she had taken off her hood, and her long hair that was longer than her shoulders was casually draped behind her head. The longbow and quiver on her back showed her expertise in combat. Oh, and the long sword at her waist showed that she could be used for both close combat and long-range attacks.

Colin didn't know how strong she was, but since she had just confidently recommended her as his bodyguard, she must be as strong as a high-level knight's squire.

Apart from her relatively short height, her figure and appearance are still quite exotic, but her biggest shortcoming is her skin color.

Oh, I think I'm overthinking it. What happens to others is none of my business.

……

The three-kilometer distance was very short, and with the strength of the two, they reached Samoa City in less than half an hour.

The city of Samoa can be considered a border city in the underground world. Although its overall size is relatively small, it has all kinds of functional shops and services.

Colin came here to buy things, not to make any other purchases. Although the "exotic ladies" on the roadside were all nice, Colin was not tempted at all.

Well, we are not that kind of people.

Soon, Colin and Akona arrived at a larger shop. Seeing the various items and materials displayed in the display cabinets, Colin felt that there was hope.

However, after asking the shop owner, the owner told Colin that underground bats seem to be easy to encounter, but they are generally of little value, so no one specifically captures that kind of creature. What's more, they are social creatures, so ordinary people can't capture them at will.

After Colin expressed his willingness to pay for consultation on the locations of underground bats, the shop owner shook his head and said he didn't know and didn't say anything more.

Colin thought the boss was deliberately refusing and was a little unhappy. Akona took the initiative to ask the boss again, and the boss finally patiently explained a few words.

It turns out that underground bats like dark and damp caves. Although the underground world is like a big cave, if you really want to find underground bats, hey, it's really not easy. When you are not looking for these little things, you can occasionally see a lot of them, but if you really look for them, you won't know where to find them.

Colin was a little speechless. This underground bat was not a very powerful monster. If you encountered it, I believe it would not be difficult to kill it. But you can't find it, what should you do?

Should I go back, go to Barna Town, go down to the first floor, and find old friends to think of a solution?