The Witcher: Son of the Planes.

Colin tried to contact Darabon and Beta Bloodhoof, but he didn't know if it was because of the distance that caused the contact to fail.

The city of Samoa has a connection hub to the underground holy tower, but Dara Beng once said that the underground world is not like the surface world. Even if there is a force, it may not be that close. When you are not familiar with the situation, it is best not to ask for help from others, as they may be the enemy of your friend.

Colin ultimately did not return to take the detour.

Not to mention the time wasted going back and forth, even if we go there, we may not be able to find any trace of underground bats. Let's try to find a solution from here.

Colin and his companion left the shop and asked many people in other shops in Samoa City, but to no avail.

What Colin didn't know was that soon news came out of Samoa City that a guy from the surface was foolishly trying to buy underground bats. It was really confusing. Was that thing valuable? Maybe he wanted to stock up on night-shining sand?

It's so funny, maybe it's easier to just buy night-shining sand than to find underground bats. Such a stupid person can travel underground casually. It seems that humans on the surface are generally not as good as us underground.

I just don't understand why the master in the holy tower gave the larger area and more resources to those fools above.

No matter what others think, Colin is determined to find the underground bats. Following Akona's suggestion, he prepares to try his luck at the next place, Vatna City, the largest city in the first layer of the underground world.

To get to Vatnajokull, you can't just rely on Bus No. 11. It takes days to get from Samoa to Vatnajokull even by bus. If you walk, it will take at least a month.

At Akona's suggestion, Colin and she rode in a van pulled by an underground wolf to their destination.

The driver was very professional. Along the way, he introduced Colin to the cities he passed along the way, as well as some information about the races in the underground world, which greatly broadened Colin's horizons.

Under Colin's deliberate guidance, Colin further understood the situation of the Tauren tribe. There were Tauren tribes distributed on the first, second and third underground layers. Even the coachman had heard of the name of the Bloodhoof tribe. It seemed that the tribe that Beta Bloodhoof belonged to was quite powerful.

Twenty days later, Colin and his companions arrived safely in the city of Vatna. After paying the driver five wizard coins (one of which was a tip), the driver quickly went to find a coach shop to rest.

After arriving at Vatna, they paid two wizard coins at the entrance and were allowed into the city only after they were warned not to cause trouble.

The scale of Vatna City is indeed not small. From time to time, you can see traces of humans on the surface, and there are even more various underground creatures. Colin can see the towering black tower in the distance from afar.

After asking Akona, it turned out to be just as Colin guessed, the only holy tower on the first floor of the underground world was also the ruler of the first floor.

Well, this existence is not weaker than the Griman Holy Tower. Colin has no intention of knowing more about the owner of the holy tower. He can't reach it anyway. He might as well find a place to live first and then find out the news about the underground bats.

Akona was really nice. She found a clean and cheap place to live. Since she didn't know how long it would take to find underground bats, she paid ten days' rent first.

After more than twenty days of travel, they were not physically tired, but mentally they did need a rest. After enjoying dinner early, they went back to their rooms to rest.

Of course, Colin also paid Akona's rent.

The next morning, after breakfast, Colin and his companions began to inquire about the news of underground bats in Watna City.

A big city is a big city. You can find information about underground bats in any store. There are night-shining sands for sale in the merchandise cabinets, so I think the suppliers can definitely find underground bats.

After paying 10 wizard coins and leaving contact information, Colin and his companions had to wait patiently for the store owner to contact the supplier.

Colin, who had solved the problem, was not idle either. With the mentality of gaining more knowledge, he and Akona strolled around the city of Vatna casually.

……

Three days later, Colin received a message from the shop owner, asking him to come to the shop, where the supplier was waiting for him.

When he arrived at the store, Colin met the supplier.

In exchange for five wizard coins, the shop owner provided Colin and his friends with a quiet room so that they could talk on their own.

"Are you going to buy underground bats?" asked the businessman.

"Yes."

"Can I ask how many do you need? And what do you want to use this for?"

"Hmm? Why, do you still want to ask this?"

"No, to put it bluntly, although underground bats are not a rare species of magical beasts, except for those in the wild, you really can't find anyone who breeds them on a large scale."

"Oh, I see. You want to pay more? Tell me, how much?" Colin thought he understood what the other party meant and said indifferently.

"...Young man, I think you are distracted. Tell me how much you need first."

"Just one is enough. Of course, if it's cheap, I don't mind buying a few more."

"Can you tell me about its use? Don't get me wrong, I'm just worried that someone will compete with me for the business of Night-Shining Sand."

"Oh, I don't have the time to raise this thing. In this case, you can also provide me with a batch of underground bat hearts. Of course, the fresher the better."

"Heart? If you can tell me what the heart of this underground bat is used for, I can give you one for free." The supplier seemed to have discovered a new way to make money.

"I'm sorry, it's really hard to tell you. Just tell me if you can sell them. Although domesticated ones may be hard to find, I believe there should be people who will sell wild underground bats."

"Well, actually I have no intention of prying into your privacy. It's just that if I knew its usefulness, it might become a new profit growth point for my wealth."

"Do you need old, young, female or male?" the businessman asked.

"Well..., it's not that particular, but as long as they are adults, the stronger the better."

"An adult male underground bat. An ordinary one is 20 wizard coins. A low-level one is 50 wizard coins. An intermediate-level one is 150 wizard coins. A high-level one is 500 wizard coins." With the intention of making a one-time deal, the merchant asked for a fierce price.

"..."

This price really made Colin speechless. It was simply outrageous. He could buy a lot of medicine with this price.

However, since his own promotion was at stake, Colin still patiently bargained with this guy.

After a lot of hard work, Colin finally got three high-level underground bats for 500 wizard coins. However, the other party was not confident about Colin's use of them and agreed to take their hearts on the spot the next day.

The next day, under the witness of the shop owner (well, the witness fee was 20 wizard coins), Colin paid the other party 500 wizard coins, and the other party took three hearts on the spot in the laboratory behind the shop and gave them to Colin.

Originally, the remaining bat body materials should have belonged to Colin, but the businessman did not mention it, and Colin did not want to waste any more effort with him, so he ended the deal.

After putting the bat heart into the space equipment, Colin was not worried that it would fail. After all, the space equipment was in a nearly static state and could preserve it for a long time.

Colin hopes to keep the heart of a high-level underground bat for himself and his family to use in the future. Colin thinks that since ordinary underground bats can be used to make potions, the effect of an intermediate level one should not be bad either.

In order to make the trip worthwhile, Colin discussed with the merchant again, hoping to purchase another batch of intermediate underground bat hearts.

Seeing that Colin would not pose a threat to his night-shining sand business, the merchant readily agreed to Colin's transaction request and sold 600 intermediate underground bat hearts to Colin for 10 wizard coins.

Finally, they said that it would be delivered directly to your door the next day.

The transaction on the second day was not mentioned. After paying Akona's hiring fee, Colin took out the crystal ball and added Akona's contact information.

At this point, Colin’s mission to the underground world was completed, and he set out on the journey home alone.