My health recovery is incredibly fast.

“Oh, so you really are just like Mars said, only focused on alchemy…” Hillenburg realized, and explained:

"This is actually not a secret in the sea castle. Our castle manager is a Crystal Remnant. He is both an alchemy master and a high mage, as well as a representative sent by the Crystal Remnant to facilitate our contact with the Crystal Remnant's higher-ups."

"And their territory is on the eastern coast of the Mediterranean Sea."

"If you stay here long enough, you might even see the Crystal Remnants' airships coming to transport high-purity resonance crystals."

Xia Zuo knew about resonant crystals; they were mentioned in ergonomics textbooks.

This is a core material used in communication devices such as secret communication rings, which enables remote synchronization.

Simply put, without external interference, two crystals with the same vibration frequency, vibration mode, vibration period, and vibration path will change when the state of one crystal changes.

Even if the two are far apart, synchronization with a delay can still be achieved.

This is the effect of remote synchronization.

(Note: "Remote Synchronization" is a simplified name I created, corresponding to the theory of quantum entanglement in reality.)

In Xia Zuo's previous life, there were many scientific practices related to remote synchronization in the world called Earth. The most widely used method was to use electrical signals to transmit information between two modems.

This scientific method of communication requires laying wires and cables to connect two modems and also requires a stable power supply, making it far less convenient than the communication methods of alchemy.

Once the Resonance Crystal is encapsulated within the alchemical device of the Secret Message Ring, it will remain intact and usable indefinitely as long as the device itself is not damaged. It requires neither maintenance nor energy.

Such excellent alchemical materials have always had their origin and purification methods kept top secret by the alchemical school.

Even Hillenburg couldn't reach this level; perhaps Shazor's mentor, Adanavardos, would have some understanding.

Xia Zuo held the book, leaned against the desk assigned to him, and read about planar geometry, quietly waiting for Rexor's arrival.

...

"Master Rexor, we have arrived."

Mars led the bald man into the ocean observation room, winked his right eye at Xia Zuo who was looking at him, and asked with his eyes what had happened...

Shazo shook his head slightly at Mars, then looked at the stern-faced Rexor, bowed, and said:

"Master, we meet again."

Rexol forced a smile, nodded, and said to Hillenburg:

"I need to conduct a survey of everyone who has come into contact with that seaweed field platform."

Hillenburg had been engaged in underwater research for many years and was already familiar with the routine procedures of the Witcher. Before the other party arrived, he had already issued a command to the team members working in the alchemy chambers on the first to third floors above ground to assemble.

Now, they are almost all here.

Including Xia Zuo, the new member, there are a total of 12 people.

Xia Zuo knew two of them: Mars, and Mars's father, Professor Allen.

Mars's staff was assigned to the Marine Research Group within the Lumington Emergency Response Department, where he was responsible for maintaining infrastructure.

Professor Allen, on the other hand, comes from a local school in Lumington. He is the professor of Craft Objects there and spends the rest of his time at the sea castle, except when he is teaching students.

Several years ago, when he first appeared in front of Xia Zuo, he disguised himself and dressed up as a Mediterranean man. In fact, he looked exactly like a middle-aged version of Mars, with the same light blond hair and the same rugged face.

Professor Allen entered the ocean observation room a little later. He cast an admiring glance at Xia Zuo, expressing his approval of his child's junior.

As for the other team members, Xia Zuo only remembered their names for the time being and did not know much about them. They were a mix of men and women, all of whom were older than Xia Zuo and Mars. They had worked in the field of marine alchemy for many years and were Hillenburg's old partners.

It is worth noting that, apart from Shazo and Mars, all members of this research group are high-ranking mages who have undergone loyalty rituals and each possess a complete elemental body.

However, only Xia Zuo can make bait, and only Mars is qualified to maintain the giant creation.

It must be said that poison alchemy and giant creation are indeed two alchemical disciplines that can thrive anywhere.

The former deterred many people due to its toxicity, while the latter made most people hesitate to try it due to the flaws in the "Furnace" meditation method.

Rexall knew the chances of a traitor in this group were extremely low, almost nonexistent, but he still meticulously checked everyone's records to ensure accuracy. After confirming everything was correct, he discussed it with Hillenburg:

"I need your help. We need to carefully search all the experimental fields to find the hidden monster eggs. If possible, after finding the monster eggs, try to keep them intact."

“Okay, Master. Then we’ll need to move the ocean observation room to a new location for easier searching. I’ll arrange it.” Hillenburg glanced at his team members and said.

"Guys, let's divide the work."

"Allen, you take Mars and Shazo and are responsible for searching the experimental fields A through E in the upper ocean. Go directly to the back of the metal foundation and use shockwave magic to search."

“Okay.” Professor Allen placed his hands on his son and Shazo’s shoulders. “I will take good care of them.”

Hillenburg nodded and looked to the other side:

"Huberon, you two go to the F and G experimental fields in the middle layer of the ocean and remain on alert. You may need to stay until late at night."

“Received, team leader,” said a man with a resolute face. His demeanor was more like that of a federal soldier, a seasoned warrior, or someone in a similar profession.

“Daniel, Laurie, you two stay in the ocean observation room to control the elemental golems and the diving room.”

Hillenburg didn't send out the only two female members of the team. This wasn't because he was sexist, but because they were both elemental figurative artists who had jointly created the elemental puppets in the ocean observation room. It was perfect for them to control the jellyfish-shaped elemental puppets.

"Everyone else, come with me to Experiment Field H in the dark zone. We'll set up the illumination facilities first, and then conduct an in-depth investigation."

Hillenburg took on the most dangerous tasks himself, along with the other three most senior members.

“I’ll go with you to the Dark Zone,” Rexol said thoughtfully. “My gut feeling tells me there will be some tricky trouble there.”

Hillenburg took a secret communication ring out of his pocket. "I'm here to apply for permission to cast spells, just in case."

The team members sprang into action, each heading to their assigned posts or to don their diving suits.

"Follow me, this way." Professor Allen kindly beckoned to Shazo and Mars to follow him, speaking to Shazo as he walked slightly to the side:

"Xia Zuo, it's been a long time. Time flies. You're much more mature than when the inspection team was assessing you."

“Professor Allen, I never imagined we’d met before. I was quite surprised when Mars told me,” Xia Zuo said in a lighthearted tone. Although the other person was also a senior alchemist, he was, after all, the father of his good senior, Mars, so they could be a little less formal when exchanging ideas.

Of course, proper etiquette is still necessary.

"Thank you so much, everyone in the delegation, for giving me the opportunity to immigrate to the Eastern Continent," Xia Zuo said sincerely.

“That’s what you deserve, Xia Zuo.”

Xia Zuo's humble and composed demeanor made Allen's impression of him even better.

Allen led the two to a corner of the ocean observation room, where a brand-new alchemical diving suit, not yet painted with a number, stood.

"I knew you were coming, so I specially commissioned an alchemical diving suit for you. It's a bit different from the general-purpose diving suit you tried before. Let me explain it to you."

Allen is a student of Master Kolas, an excellent craftsman who has studied in the temple several times. The diving suits used in the ocean observation room are all made by him.

Allen called out to his tall son, "Mars, go put on your diving suit first, and take the giant creation toolbox with you, you might need it."

“Okay, Dad.” Mars smiled at Xia Zuo and walked to the side to compare his posture.

A wetsuit with three or four loops.

Allen patted his new wetsuit. "Have you tried using [Toxin Sense] underwater?"

"I tried it, Professor Allen, but it didn't work very well. I couldn't even find the tool hidden in it."

“As expected.” Allen gestured a circle on the circular visor of his diving suit. “Here, there’s a magic circle that improves the effects of detection spells, specifically for detecting targets underwater. You can try it out later.”

He pointed to a square protrusion on the left arm of his diving suit. "This is a tool armband with a storage space enchantment. You can reach in and grab the alchemical tools you want. I've put a set of special tools inside, suitable for use in high-pressure, dimly lit environments. You'll like it. Also, don't worry about seawater getting in. I've taken that into account; there's a magic circle on the tool armband to solve that problem."

Allen moved his fingers to the two thighs of the diving suit, "And here and here, there is a launcher that can fire a hook spear. You slap the protrusion hard to fire the hook spear, which can fix you to the rock or metal base. Slap it again to retract the hook spear."

"Come on, try them on." Allen walked towards the control panel.

With the other party's help, Xia Zuo put on his diving suit.

Mars, standing next to him, had it much easier.

He is very strong.

The information from the detection technique indicates that this blond man, who seems to be both reluctant to admit his muscular physique, possesses a strength of 17 points, which is higher than that of an average warrior.

Mars can put on the heavy wetsuit with just his hands, and he doesn't need help taking it off unless it's dirty from returning from the ocean.

"Shazo, try the hook spear." Allen pressed a button.

A 5-centimeter-thick metal plate appeared in front of Xia Zuo.

He stretched out his legs, aimed carefully, and then slapped both sides of his thighs hard with a loud crack.

"Boom!"

"Bang! Bang!"

Two hooked spears with three-clawed hooks instantly embedded themselves into the metal plate. Clearly, these hooked spears were no ordinary items; they were also products of enchanting, possessing an armor-piercing enchantment effect.

Xia Zuo pulled hard; it was very secure, and the rope of the hook spear could fully support the weight of the diving suit.

“Great, Professor Allen,” Shazo laughed from inside his diving mask. He slapped his thigh, and the hook on the spear straightened immediately before retracting.

Seeing that he was almost familiar with Shazo, Allen used the Hand of Wind to put on his diving suit...

It's important to know that the maximum weight that the Hand of Wind can lift is only half of the spell's power.

The heaviest part of the diving suit is the hood, which weighs about 20 kilograms. This means that Allen's Wind Hand power is over 40 points, and the corresponding number of wind elements is at least 40.

As expected of a high-level mage, his magical power is indeed formidable.

Xia Zuo couldn't help but feel a little envious, but that was all... As long as you can survive, you'll have everything.

"Om..."

A deep rumble echoed in the ocean observation room.

Xia Zuo noticed a faint white light appearing on the transparent glass walls around him, indicating that the magic circle inside the glass walls had been activated.

“Daniel is diving into the control room for the ocean observation.” Allen said, checking his equipment.

"We need to dive to a depth close to the dark zone to get closer to the team leader and Master Rexol. Later, the three of us will surface in the dive chamber and inspect the platforms on the upper ocean layer one by one."

The blue sunlight was fading, and soon Xia Zuo saw Platform A, which he had visited before…

He then remembered that he needed to inform Anru'er... He quickly activated [Bloodline Sensing], gave his beloved wife, who was far away in Poseidon, a few words of advice, and continued his descent with her slight worry in mind.

The light was very dim.

The surroundings were pitch black, an impenetrable darkness that enveloped the ocean observation room.

"Let's get started, everyone. Stay in touch." Hillenburg's calm voice rang out from inside each of their diving suits.

With heavy steps, Xia Zuo followed Allen and Mars into the diving room and moved upwards.