The troubles and sorrows of Red Crab Island did not affect Liszt, who went out to sea to search for Dudu Island.

I carefully sorted out the four space gems and stockpiled all the survival materials, from monsters, milk, potions, and weapons to brewed tea. He inspected Black Horse Island, Flower Town, and the surrounding waters again, and held two meetings to arrange the task of territorial construction.

When he was ready, he told Ark to ride the colorful whale Rose and search for the sea to the north.

To the north and west of the Blue Sea is the Devil's Sea, and legend has it that there are devils coming and going in the Devil's Sea, and even the dragon knights can't cross the Devil's Sea. The Grand Duchy of Sapphire has been established on this archipelago for 153 years, but almost no one has opened a route in the direction of the Devil's Sea, except for opening up a sea route to the blue sea.

So.

Coral islands and hot spring islands are basically the northernmost points explored by humans.

Wado Island is one of those islands that would not have any idea even if someone knew about it, so there would be no nautical charts pointing to this island.

It was only through her knowledge of navigation and her own proximity to the sea that Acker could lead Liszt to explore the vast sea.

The distance of 800 kilometers, plus the delay of eating and resting on the way, basically took 12 hours, and I had already arrived at the determined area.

"Brother, according to the map we drew before, now we need to use this place as a starting point to continue to search this sea area. ”

"I found a problem before. ”

"What's the problem?"

"The depth of the sea is very deep, and according to the formation of islands, it is either on the continental shelf, or by volcanic eruptions, or by the continuous deposition of coral reefs," Liszt said. "The archipelago of the Grand Duchy of Sapphire is basically a continental shelf island.

On Earth, islands like the Grand Duchy of Sapphire can be called continents on their own - especially Blue Dragon Island, which is almost the same size as Australia, and Iron Shoe Island is half the size of Australia.

The waters of the turquoise sea are shallow, with an average depth of only a few hundred meters, and no more than a kilometer. A few hundred kilometers west of Coral Island, there is a deep water area of more than 1,500 meters. Liszt thinks that it may be that Coral Island and Black Horse Island are already on the edge of the continental shelf.

A little further away, it belongs to the continental slope.

The continental slope slopes downwards and leads to the bottom of the ocean, where the real underwater world is.

Of course, Liszt was not a geographer or oceanographer, and he only knew a little about the continental shelf, the continental slope, and so on. There was no way to explore the deep waters himself, after all, he could only dive to a depth of a few hundred meters, and even the Siren Ark could only dive 1,500 meters.

Fifteen hundred meters is not enough to reach the real bottom of the sea.

Basically, the Blue Sea is the continental shelf sea, and the Devil's Sea is the real deep sea, and no one knows what kind of creatures live there.

With a flash of chaotic thoughts, he continued: "Watardo Island should be a typical volcanic island, and to find it, you can actually see it from the topography of the seabed...... When a volcano erupts from the bottom of the sea, it creates a gentle slope of the mountain, and if you find this kind of terrain, you will be able to find Watardo Island!"

As he spoke, he took out thick paper, ink, and quills and drew a diagram on Rose's back.

After looking closely, it was easy to understand what Liszt meant: "Well, brother, Ark understands. Next, Ake will carefully search the bottom of the sea, and his brother will wait for Ake on the sea. "Liszt couldn't dive to the bottom of the sea, and Aker was the main force of the search.

But despite the method.

Finding Wado Island doesn't get any easier.

Although Ake dived to the bottom of the sea at a depth of more than 800 meters, he could not judge the topographical trend of the seabed, which would rise and fall, which was very uneven.

"Look for it slowly, I'm ready to spend a week in this area. Liszt, who was sleeping on the sampan, comforted the somewhat anxious Ake.

The sampan is naturally housed in the gem space.

As long as his fighting energy can wrap around the sampan, he can be stuffed into the gem space. He is not a fish and cannot sleep in the sea when he sleeps, so he must take a boat and sleep on it. There are wind beads and water beads, and the wind and waves on the sea can't affect him.

Ake's large shell floated on the edge of the sampan, and she looked at Rose wandering in the distance with some envy: "If only Ake could sleep like Rose." ”

Rose is a dolphin that sleeps with one eye open and one closed, and its body still swimming. Because its left and right brains take turns sleeping, guaranteeing that it will never drown because it falls asleep.

"I don't envy Rose, of course I have to sleep happily when I go to bed, and I don't think about anything is the best enjoyment. Liszt looked up at the stars in the sky and asked casually, "Ake, do you know what the stars in the sky are?"

"Stars?" Ark shook his head, "I don't know, is it a glowing stone?"

"Every star is a sun. ”

"The sun?"

"Yes, most of the shining stars are stars like the sun, and only a few are probably planets that revolve around the sun, and the world we live in is a planet...... Of course, this is all my guess. Liszt didn't dare to say absolutely.

He didn't dare to guarantee that this world would really be a planetary world, in case the sky was round.

What if it was a large sea turtle carrying the whole world?

Of course, this did not prevent him from taking the ordinary astronomical knowledge on the earth to show off to the little Siren girl. Especially the Big Bang theory, which made the little kraken stunned. But after being stunned, he seemed to think about it again, and he didn't even seem so engaged in chatting.

Seeing this, Liszt was no longer interested in boasting about his Big Bang theory, which was both true and false, and did not know how to pretend to understand.

He just muttered in his heart, "Ah Ke's state seems to have a new inspiration for her to cultivate magic by hearing me talk about the Big Bang theory?"

"If that's the case, then her talent is really incredible!"

Thinking like this, he decisively quieted down and admired the stars in the sky alone. In the bright starry sky, a bright Milky Way hangs in the sky, and I don't know if this is the Milky Way or what galaxy.

Thoughts wander, wandering outside the object.

Right now.

In the distance, there was a sudden sound of a loud wave crashing, pulling him back to reality. He turned his head abruptly and looked into the distance. The night was too dark to see clearly, and it seemed that some fish were making waves in the distance. To make such a loud sound is definitely a big fish.

He immediately cast his Eye of Magic to see if it was a sea monster.

The next moment.

There was a brilliant blue-white light in his eyes, it was a whale composed of huge magical power, and the magic power on his body was far more intense than all the magical beasts and sea monsters he had ever seen.

He was rolling on the surface of the sea, leisurely lapping the water, swimming in the direction where he was.

He suddenly got up and got goosebumps: "Such a strong magic...... It can't be a high-level sea monster, right?"