Wizard: Live hard and you will become stronger

After continuing to walk in the cave for more than 20 minutes, there appeared in front

"Huh? Is that light?"

Nicole pointed to the front, but saw that there seemed to be a light appearing on the other side of the cave, which was particularly eye-catching in the dark seabed.

Green nodded: "Yes, the exit is here."

After a pause, he pointed to the lantern in Luo Xi's hand and said, "The lantern can be extinguished."

The two tidal sirens in front have also extinguished the tridents in their hands.

Seeing this, Luo Xi turned off the magic lantern and returned it to Green in front of him.

Continuing forward, after walking along the cave for a few minutes, the light source in front became more and more abundant, and the original darkness was gradually dispelled. By the time we approached the cave about a hundred meters away, the light here was already very sufficient, and the texture on the surrounding stone walls Everybody can see it clearly.

If he wasn't still floating in the air and could feel the flow of sea water, Luo Xi would have mistakenly thought he was in an ordinary cave.

One hundred steps

Fifty steps.

ten steps

Soon, Luo Xi walked out of the cave, and then, a very unique underwater world was revealed in front of Luo Xi's eyes.

This is a very magical mountain wilderness.

Knee-high emerald green water plants cover the entire land, which looks almost like a very fertile grassland, making people just want to lie down comfortably and have a good sleep.

Next to the lawn is a coral group. The colorful corals are gathered together in a large area. The small ones are no more than the size of a palm, while the large ones are as tall as a person. It looks like a stone beach with a special style.

All kinds of strange fish, crabs, and shrimps swim freely among the corals, making it a relaxing and enjoyable experience.

Nicole was dazzled and mysterious: "It's so beautiful here, Luo Xi."

Luo Xi nodded: "Indeed."

As he spoke, he turned his head and looked around. When Nicole saw it, she couldn't help but wonder: "What are you looking at?"

Luo Xi explained: "I'm looking for the light source. Where does the light here come from?"

And soon, he found the answer.

It's a jellyfish.

There are many water trees and tiny plankton floating in the water here. These things will release light sources, and it is the kind of white light that spreads widely. When they are connected, the light source here will fill every corner. , also makes this place just like the outside world.

Green came over: "These are light fish, they are the light source in the sea, and their routine is the same as the outside world. Every night they hide in the coral groups to live, and the light source is dimmed, leaving only a few The tiny plankton were glowing, and it became like the night outside."

"Those tiny mayfly creatures will also gather together in the river valley above. When the light fish are extinguished, they will look like the stars we see at night."

Luo Xi exclaimed: "It's really a magical underwater world."

He originally thought that he already had sufficient knowledge, but this was the first time he had heard of what Green said.

Green nodded: "This world is very big. The underground, the seabed, the sky, and the land. Each of the four worlds has its own splendor. Even we wizards only know a little bit about the world now."

He had seen this sentence in books before, but now he truly understood its meaning.

Green continued: "We are almost there, and ahead is the gathering place of the Tide Siren."

He raised his hand and pointed forward.

Luo Xi looked in the direction of his finger. It was in a valley ahead. The valley was surrounded by a group of corals. There was even a lake in it, and beside the lake, a towering castle stood impressively.

Nicole was surprised: "Castle? Tide Siren still understands this?"

Luo Xi was also very surprised. After all, as far as he knew, the sea people were not very good at exquisite construction techniques. Buildings like castles should be unique to land creatures.

Green explained: "This castle was not built by the sea people here, but was left by a former wizard."

"It was a high-level wizard who built this castle here for long-term observation because he was doing some research on undersea creatures. The wizard left here after the research, so this castle was given as a gift. The tidal sirens here are cooperating with him in his research."

Luo Xi suddenly realized: "So that's it."

"Okay, let's go there quickly."

It's a wonderful feeling to drive on the bottom of the sea. With the help of the compound interest effect, you can easily jump more than ten meters with each step, and you can also float in the air at any time, just like a bird, flying towards your destination.

Soon, Luo Xi and his party arrived in this valley.

At this time, Luo Xi discovered another strange thing. There was actually a lake in this valley.

Of course it is not unusual for lakes to appear on land, but this is the bottom of the sea, and they are completely in the water. However, it is really surprising that there are lakes in such a place.

Luo Xi asked curiously: "Is this a lake?"

Green nodded, and then said with a mysterious smile: "You will know if you reach out and touch the water."

Luo Xi then reached out and touched the water here.

And the moment his hand touched the water, he immediately felt that the water in the lake here was unusual. The water seemed to be very heavy. It didn't feel like water at all when he held it in his hand, but instead looked like big rocks.

Luo Xi was surprised and said: "Is this heavy water?"

Heavy water is a strange substance in this world. Their density is much greater than that of ordinary water, so it is also much heavier than ordinary water.

Green nodded: "Yes, it is heavy water."

Luo Xi looked at the water in his hand and couldn't help but frown: "Can I take some away later?"

Heavy water is also a very rare substance. Luo Xi has only seen it in books before. Taking this opportunity, he also wanted to get some for research.

Green consulted the two tidal sirens, and the latter nodded readily.

In fact, the lake here has a special meaning to the tidal sirens that live here. It is considered their holy lake and outsiders are generally not allowed to approach easily, let alone take away the water here.

However, Luo Xi helped them drive away the deep-sea giant whale before. As a thank you, these tidal sea monsters agreed to Luo Xi's plea.

Luo Xi then took out the container, collected a few small tubes of heavy water, and thanked the Tide Sirens.

After collecting the heavy water, the group set off on the road again, and this time they finally arrived at the destination of their journey, which was the castle standing in the valley.