In Quan Yi's vision, complex and incomparably intricate patterns flowed within the ship's hull, which resembled transparent glass.
Quan Yi gazed at the sea vessel, completely enraptured, murmuring softly, "It's hard to imagine that in ancient times, our ancestors could create such a powerful Soul Guidance Device!"
The sea vessel docked at the pier was precisely the Dragon Abyss Boat that the Quan family had purchased.
Quan Yi found it difficult to imagine that a place where even iron ships hadn't been developed would actually produce a submarine.
Huowu sighed from the side, "I heard that this Soul Guidance Device isn't popular at all in Vast Sea City. Because its use is too impractical, the price has always remained very low."
Quan Yi replied, "That's because those people are blind and can't see the true value of this Soul Guidance Device.
The Dragon Abyss Boat is a special Soul Guidance Device that can change its shape.
This ability alone surpasses ninety-nine percent of Soul Guidance Devices.
Besides this, it also has the ability to dive into the sea. At the same time, the interior not only has a crystal rudder controlled by soul power but also stone strips that can display air concentration.
More importantly, it also possesses the function of generating thrust with soul power.
For me, all of this is extremely valuable knowledge."
Quan Yi continuously observed the soul power patterns hidden within, memorizing them in his mind with his powerful mental strength.
Through repeated testing, he separated several soul power patterns with different effects.
These patterns, although belonging to a single entity, are independent of each other and can be activated separately.
Among them, Quan Yi was most concerned with two.
One was the soul power pattern that changed the weight and shape of matter.
The other was the pattern that generated thrust with soul power.
After collecting all the necessary information, Quan Yi retrieved the Dragon Abyss Boat.
"Let's go and try to replicate the effects of the Dragon Abyss Boat."
Quan Yi excitedly grabbed Huowu's hand and went to his own laboratory.
Quan Yi's laboratory is located in the center of the Quan family's territory.
There is a vast complex of buildings here.
Among them are the Gunpowder Research Institute, the Metal Research Institute, the Mechanical Research Institute, and the Materials Research Institute.
And Quan Yi's laboratory is located in the very center.
Its exterior is a delicate two-story villa.
Inside, there are various different rooms.
Quan Yi took Huowu to the room where he studied Soul Guidance Devices.
Quan Yi sat in front of his workbench, picked up the Soul Guidance Engraving Knife next to him, and began to engrave the patterns he had memorized into a blank Soul Guidance Metal plate.
Huowu sat quietly by the side, watching Quan Yi.
Although she didn't quite understand Soul Guidance Devices, quietly watching Quan Yi's serious appearance made her feel peaceful.
The warm atmosphere made her a little intoxicated.
To ensure the success rate, Quan Yi directly activated the Scarlet Dragon Eyes.
With the aid of the Scarlet Dragon Eyes, Quan Yi perfectly replicated the patterns for changing mass and size from the Dragon Abyss Boat.
Instantly, countless metal fragments flew from the metal block in Quan Yi's hand.
"Did it succeed?"
Huowu knew that this was a sign of successful Soul Guidance pattern engraving, which made her a little excited.
The corners of Quan Yi's mouth curled into a satisfied smile.
He stretched out the metal block in his hand towards Huowu, and when the light dissipated, Quan Yi inputted soul power into the metal.
The next moment, the palm-sized metal block quickly shrank, becoming a metal speck the size of an ant.
Huowu stepped forward and carefully examined Quan Yi's palm.
She saw that, apart from the size, the shape was no different from before it shrank.
"Little Wu, you can pick it up and take a look."
Huowu curiously reached out her right hand, using her index finger and thumb to grab the tiny metal.
"So light!" Huowu exclaimed as soon as she picked it up.
Huowu discovered that the weight of the metal block was no different from that of an ant.
However, when she tried to crush the metal with force, she felt the original toughness of the metal.
At this time, Quan Yi reminded, "Little Wu, try inputting your soul power and see what changes occur?"
Huowu immediately inputted soul power into the metal.
The next moment, a red light flashed, and the metal at her fingertips quickly expanded. At the same time, the weight of the metal also returned.
The red light dissipated, and Huowu held up the heavy metal block.
"How magical, how is this done?"
Huowu asked Quan Yi in surprise, but Quan Yi couldn't answer this.
For this peculiar phenomenon that ignored basic physical laws, Quan Yi could only attribute it to soul power.
"We can only say that soul power has countless possibilities."
Huowu handed the metal to Quan Yi and asked, "This ability is indeed very unique, but it can only be applied to the material itself.
Are you trying to replicate the Dragon Abyss Boat?"
Quan Yi smiled mysteriously and said, "There is this part of the reason, but, besides that, this ability can be used in other aspects.
The application method I can think of now is to engrave this pattern into the Blazing Sun Dragon Lance.
If successful, I can freely change its size and weight.
That way, even without a martial soul fusion skill, we can use it."
Huowu's eyes lit up, but she quickly reacted and said, "But, the Blazing Sun Dragon Lance is very hard, and apart from itself, even a Title Douluo-level weapon martial soul cannot engrave patterns on it."
Quan Yi said, "You're right, but nothing is absolute.
Don't forget how this weapon was forged.
We only need to put it back into the Blazing Sun Spring to soften it again with the extremely hot aura.
As long as I take the opportunity to engrave the patterns inside the softened metal with soul power, I can obtain a Blazing Sun Dragon Lance that can freely change its size and mass."
Regarding the Blazing Sun Dragon Lance, Quan Yi had actually planned to recast it long ago.
As his research on Soul Guidance Devices and Soul Rings deepened, many ideas emerged in his mind.
Moreover, he had actually noticed that the Blazing Sun Dragon Lance had not reached its limit by far.
It can absorb more Blazing Sun Spring energy.
If it weren't for hunting a hundred-thousand-year soul beast, he wouldn't have fished it out so quickly.
However, it was thanks to Quan Yi's early retrieval that Quan Li successfully killed the hundred-thousand-year soul beast.
Quan Yi did not regret this.
Seeing that Quan Yi had already envisioned the application, Huowu didn't ask any more questions.
Quan Yi retrieved the metal block that changed size and took out a brand new Soul Guidance Metal again.
This time, he wanted to try to engrave the soul power pattern that generated thrust.
The complexity of this thrust-generating soul power pattern was greatly reduced compared to the previous one.
Quan Yi successfully replicated it in less than a quarter of an hour.
However, to Quan Yi's disappointment, the thrust generated by this Soul Guidance Metal was even smaller than the thrust of a steam engine.
However, when Quan Yi thought that it could be used underwater, the disappointment in his heart disappeared a lot.
Underwater, this level of thrust is enough to propel submarines tens or hundreds of meters long.
In contrast, steam engines cannot be used underwater without air.
