Deep under the sea, the three witches formed a small circle and slowly descended to the back of the whale, then began to talk and ask questions.
"What changes have taken place in this sea area in the past ten years?" Loran Hill asked this question first.
"Well, I'll ask it." Weimiya nodded.
After a few minutes, Weimiya opened her eyes again and began to narrate.
"According to what it said, it hasn't always lived in this sea area. In the past, it swam in several sea areas following the ocean currents."
"It's just that the ocean currents have gradually changed over the years, and it has lost its way a bit, and is now stranded here."
"Is that so..." Loran Hill thought thoughtfully.
"So how do ocean currents change?"
"It is gradually weakening. The previously clear direction has become disordered and blurred, and the temperature of the seabed has gradually dropped." Weimiya answered again after a short negotiation.
"Has it ever seen other giant sea beasts, or particularly powerful magical beasts?"
"It seems not. Sea beasts of their level generally don't meet each other. After sensing each other from a distance, they will tacitly separate."
After that, Loran Hill and Tehua asked some more detailed questions, and slowly, they felt that it was enough, so they stopped.
"Has Vimiya been to this sea area before?" After asking the big whale, Loran Hill turned his gaze to the friend beside him.
"No, I used to be more active in the central part of the Endless Sea and some sea areas in the south. I have never been here before." Vimiya shook her head.
She has inherited the power of the Sea Witch not long ago, and has spent a lot of time sleeping. If she were Phoebe in the past, she would be very familiar with the various seas in the world.
"I have some ideas in mind, but they still need some verification and confirmation. I'm afraid I'll need Vimiya's help."
"There's no problem on my side, but the southern part of the empire will become extremely weak if both of us leave." Vimiya looked at Loran Hill and expressed her concerns.
"I will ask Westena to take care of this problem. It will only take a month. The witches in other camps will not be able to react so quickly." Loran Hill made the decision.
Although there is a bit of risk, it is within the acceptable range.
"Then just follow Roland's instructions, hehe." Seeing the rare determination of the silver-haired girl, Vimiya blinked and agreed.
"Let's get started."
After Loranhill and the other two witches agreed on a plan for the next period of time, they quickly separated.
Going south along this sea area, Vimiya explored the direction of the ocean currents on the seabed and continued to draw past trajectories.
Tehua went to the ice elves on the coast to obtain past records about ocean currents, while Loranhill went to the northern and eastern coasts of the western continent to obtain information related to the past and ocean currents.
If it is really as the girl expected, the root cause of this cold disaster should be the change in ocean currents.
It may sound incredible, but ocean currents on the seabed do have such a big impact that they can change the climate of the entire world.
In the next month, the three witches were busy, and Loran Hill also changed into a gray robe and coat, and quickly shuttled between various ports, collecting past nautical charts and navigation information, and slowly recreating the previous maritime conditions.
In this way, time passes quickly.
While the eastern and western sides of the empire were still engaged in a war of words and began recruiting troops for war, Loran Hill also returned to the agreed location in the northern continent.
"These are the materials drawn by the ice elves." Tehua placed a thick stack of books on the table, and then slowly spread out a newly drawn scroll, on which the coastline, ocean currents, former fish schools, and the distribution of islands were clearly outlined with ink.
"I'm almost done here." Weimiya took out the ocean currents she had drawn recently.
Finally, Loran Hill took out the sea chart she had drawn. Three-quarters of the chart were integrated and overlapped by the system in her eyes, and then slowly adjusted and adapted, and a clear and natural ocean current circulation map appeared.
"So that's how it is." Luo Lanxill's eyes lit up and he nodded slightly.
"What's wrong, Loran?" Vimiya asked curiously after seeing what Loran Hill had discovered.
"I understand." The silver-haired girl blinked happily, then opened her palms. Countless points of light appeared in the air and then combined into a three-dimensional scene.
The two witches were amazed by such delicate operations, but they were soon attracted by the changes in the scene.
"Actually, for a long time, several ocean currents have flowed back and forth between the coasts of the northern and western continents. However, a few years ago, following the cosmic upheaval, some submarine vortices disappeared, while others emerged, causing changes in the ocean currents. Gradually, the currents reaching the north have become weaker and weaker."
As Loran Hill spoke, fiery red currents appeared in the virtual image. They spread northward in the shallow sea area, bringing huge heat and warming the icy sea.
Along with the ocean currents are many migrating fish. With the help of the ocean currents, these fish can easily swim to distant seas and hatch eggs in their hometowns in their memories. As the ocean currents disappear, the fishery on the northern coast gradually becomes scarce, which forces the ice elves of the northern continent to shrink their settlements and migrate eastward.
In the past, warm ocean currents would bring heat and abundant water vapor, bringing a large amount of precipitation to the northern part of the western continent. Then, when they reached the waters of the northern continent, the sea water would become saltier and denser. This part of the ocean current would gradually sink, and then return to the warm waters in the south from the deep sea area, forming a cycle.
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