Chapter 579: The Thermostatic Pearl for Warm Winters and Cool Summers

Upon entering the fourth floor of the mage tower, a refreshing coolness washed over him.

It was already mid-June, officially entering the sweltering summer season. Although Black Horse Island is at a higher latitude with considerable rainfall and is situated on the sea, the heat on sunny days is still overwhelming. The outside temperature was around 27 to 28 degrees Celsius, but inside, it felt like only about 10 to 15 degrees Celsius.

The drastic change in temperature was striking.

"Viscount Levis, this is the magic equipment we made using the Golden Pearl. The outer disk is a control magic array that can be operated to adjust the temperature from high to low," explained Glanny, serving as the guide, detailing the attributes of this equipment to Levis.

The equipment was essentially a disk-shaped device with a Golden Pearl embedded in the center.

Levis touched the disk and found its temperature matched the room's, not any cooler: "Is the current temperature high or low?"

"It's basically a low-energy, high-temperature setting."

"Set it to the lowest temperature and see how much it can cool."

Glanny, now living in the mage tower, had his meals delivered and occasionally went to the port town to watch stage plays and comedies. He also frequently consulted with the great magician Cris, leading a comfortable life that improved his temper. He worked very diligently, and his tone was much gentler.

"Yes, Viscount."

He quickly activated the magic runes on the disk for adjustment, and soon, the room's temperature dropped sharply, getting colder and colder.

When the temperature reached about 4 to 5 degrees, it couldn't go any lower.

Feeling the goosebumps on his skin, Levis frowned and asked, "Is this its minimum cooling capability? Can't it go down to freezing?"

"Sorry, Viscount Levis, Cris and I have tried many times, but we still can't get the Golden Pearl to produce ice. Its magical capacity is limited to that," Glanny said regretfully. If it could make ice, the value of the Golden Pearl would definitely double.

Unfortunately, Cris also shook her head: "Unfortunately, the Golden Clam is a water attribute sea monster. If it were an ice attribute, the Golden Pearl could definitely produce ice." As a great magician, she could create a small amount of ice herself, but relying on her personal magic to make and sell ice was not cost-effective.

Though disappointed, Levis encouraged them: "It's already quite impressive. With the Golden Pearl, I believe this hot summer will be far more tolerable... Have you named it yet?"

"Viscount, please give it a name."

"Hmm." Levis thought for a moment and then asked, "Since it can adjust the temperature, can it also provide heating in winter?"

Cris pondered and replied, "While we’ve activated its ice attributes, its true nature seems more like a thermostatic regulator. Now in the hot summer, it shows cooling properties; in winter, it should be able to provide warmth."

During the earlier report, both she and Glanny had not thought of this, only considering that the Golden Pearl could cool.

After Levis’s question, they realized: if it cools in summer, why not warm in winter? After all, its temperature adjustment range is from 4 to 5 degrees to about 10 degrees Celsius—though the temperature measurement was just Levis's feeling, as there was no thermometer here.

"This way, its function is more versatile, capable of both cooling and heating," Levis was quite satisfied with this. Pure cooling has limited effects; creating an effective climate control system is better. "Since it's a temperature-regulating device, let's call it the Thermostatic Pearl!"

The Black Pearl can be made into the Wind Calming Pearl.

The Pink Pearl can be made into the Water Calming Pearl.

The Golden Pearl can be made into the Thermostatic Pearl.

All three pearls possess powerful effects, bringing him comfort as the best news he’d heard in some time: "The sea monster pearl clams in the tranquil lake of Blue Dragon Island can produce white pearls, which only have a simple calming effect, significantly less effective than the three pearls produced in my territory!"

Especially since the Black Pearl, with its inherent calming effect, far surpasses the white pearls.

He and Levis, along with Gloria, have already sold Black Pearls to many noble ladies in the Duchy, making a lot of gold.

Unfortunately, the Black Pearls are sold out, and to collect more, it would take at least a year or two—as for large Black Pearls, it might take decades or even centuries to cultivate. However, older Black Clams live in the deep sea, and whenever they appear in the Pearl Lake, a fortune can be made.

The techniques for pearl harvesting and cultivation have been developed, allowing for collection without harming the life of the Black Clams.

This is an industry with long-term development potential.

He gathered his thoughts.

He asked Cris and Glanny, "What is the range of the Thermostatic Pearl?"

"Based on this Golden Pearl's standard, it covers an area of about thirty square meters."

"Hmm, a bit small," Liszt grumbled, then added, "I'll get you more Golden Pearls. Take your time to craft them into Thermostatic Pearls. Then, install some in the mage tower, and I'll use the rest in my Thorn Castle."

Glanny, being the main force in crafting magical equipment, immediately nodded and said, "Don't worry, Viscount. I'll handle making the Thermostatic Pearls."

...

The Golden Clam is a sea monster capable of casting a basic spell—water bullets.

The best collector for this is the sea demon Acheronides, but Acheronides has been deep into studying natural magic lately. Liszt did not disturb her and instead personally rode the Rainbow Whale Rosi to the Golden Clam habitat near Rocky Island. He searched for large Golden Clams, approached them, and lured them with food.

He waited for the Golden Clam to open, then quickly jammed in a Fire Dragon bone to keep it from closing, and shielded himself from the water bullets it shot out.

He swiftly sliced through the membrane around the Golden Pearl and pulled it out.

He slipped in a grain of sand and yanked out the Fire Dragon bone.

This way, the Golden Clam stayed unharmed and kept producing Golden Pearls. Sea monsters heal fast; they usually survive if left alone.

Golden Clams and Black Clams can both be handled like this. The tough one is the Pink Conch—you can't get the Pink Pearl without killing it.

He kept at it.

In just an hour, Liszt had fifteen Golden Pearls.

He figured that should cover what he needed. The castle required Thermostatic Pearls for no more than ten rooms, and the mage tower needed five more, exactly using up the fifteen. As for the one he currently had, he could give it to Acheronides for her to play with or study.

The problem is, Golden Clams are rare, and egg-sized Golden Pearls are even rarer.

Otherwise, Liszt would definitely collect a large number, make them into Thermostatic Pearls, and sell them to earn a lot of gold coins to buy supplies.

It seems that good luck has returned.

Just as he digested the good news about the Golden Pearls, another piece of good news arrived: the textile workshop finally spun the green hair of the green caterpillars into cloth and sent it to the castle for Liszt to appreciate.