Sid was deep in thought when he heard Yun Wei's voice and subconsciously glanced at him.
The gaze was so sharp that even through the perfectly polished lenses, Yun Wei was intimidated by the other party's murderous intent.
He thought he had interrupted the other person's train of thought, but when he realized that the other person was not focusing on him, he breathed a sigh of relief.
"Oh, it's Yunwei. You're done with your work?" Sid finally snapped out of his daze and noticed Yunwei standing beside him.
He took off his glasses and put them in their case, then slowly untied his apron. "I didn't realize how late it was."
"Yes, I'm done with my work," Yun Wei replied, glancing discreetly at the incomprehensible design drawings on the control panel before quietly looking away.
"Is this what you were going to ask?" Sid pulled out a sketch and handed it to Yun Wei. "I'm developing a flying machine for travel, but the design of the propulsion system keeps failing."
Yun Wei carefully took the blueprint from the other person's hand, only to find that the sketches on it looked very much like the hot air balloons and airships from his previous life.
The aircraft is divided into three parts: the passenger cabin, the flight room, and the power unit. This sketch mainly illustrates the final power unit. The canvas is sewn into a cloth bag that is opened by an umbrella-shaped keel, and the power box at the bottom is connected to the pipe that outputs the wind element.
Sid continued to complain under his breath, "Constantly releasing wind elements downwards only allows for vertical movement. If I add a horizontal power design, a typical canvas bag simply can't handle the combined force..."
"The wind element output from the magic crystal is very unstable. Combined with the wind force from nature, it will tear the dragon bone to pieces in no time. Unless I work on the strength of the aircraft, but the cost would be less than using it to build a long-distance teleportation array..." Sid continued to ramble on.
In fact, he didn't expect Yun Wei to understand at all; he just wanted to take this opportunity to clarify his own thoughts.
Perhaps even Master Sid himself didn't realize what kind of people his research was targeting when he suddenly felt like it—
But among that crowd, some people were already deeply attracted to him.
Yun Wei was simply playing the role of a dutiful listener.
Amidst the completely incomprehensible technical jargon, he couldn't help but recall his last flight experience.
That was outside Moonflower City, where Isaac used his battle aura to bring him to a teleportation array not far from 'Drinking Horse Market'.
It should be noted that flight has always been a talent of other races.
For humans, only by becoming a high-level professional or by using the 'Levitation' spell in the fourth-level wind magic can they briefly leave the ground.
However, Yun Wei was unsure whether the physical laws of his world would apply to the Zhuyuan Continent.
After all, water on the continent of Zhuyuan only exists in two states: liquid and gas.
Ice, on the other hand, exists as a completely different element.
He thought for a moment, and then, taking advantage of a pause in the other person's long sigh, said to Sid, "How about we try some hot air? Uh, I bet Bili releases flying lanterns during festivals..."
It takes immense courage to spout nonsense while enduring Sid's calm gaze.
Yun Wei didn't know if Bi Li had the custom of releasing Kongming lanterns to pray for blessings, but he was making the suggestion in a very serious manner.
Fortunately, Sid's attention wasn't on his face at all; he only heard the other person muttering, "Hot air? Hot air..."
Her emerald green eyes suddenly lit up, and she immediately rushed to the control panel to start drawing a new sketch.
Yun Wei: "..."
He suddenly became very nervous.
He just mentioned it casually and irresponsibly; if it wastes the other person's energy...
No, just thinking about how the other person might have to stay up all night made him feel incredibly guilty.
Fortunately, Master Sid was destined to be unable to stay up all night.
Because the lonely Duke of Bethlehem had quietly arrived at the laboratory.
He's coming to personally arrest someone who didn't keep their word.
"Sid, it's time to rest," Silver said with a smile.
Seeing that the other party completely ignored him, Silver's eyes gradually became deep and unfathomable.
The polite Grand Duke of Bethlehem nodded to Yun Wei, then bowed and whispered something in Sid's ear.
Then Yun Wei saw that Xi De's ears quickly turned bright red.
The other person's hair was originally golden-red, but even so, you could still see that their ears were red, which shows how embarrassed and angry Sid was at that moment.
"I...I understand! Now keep quiet!" Sid said hastily, interrupting Silver who was about to say something more.
He stood up in a panic, grabbed Silver's layered dress sleeves, and dragged the still-dignified Grand Duke out of the laboratory.
Halfway there, Xi De turned around and called out to Yun Wei, "Little Yun Wei, get some rest! We'll meet again tomorrow morning—"
Before the alchemist could finish speaking, he was picked up by the tall, thin man beside him.
His voice suddenly stopped.
In the empty laboratory, only the sound of Silver's footsteps fading into the distance remained.
From Yunwei's perspective, he could only see the back of the Grand Duke of Bethlehem, who was wearing a magnificent cloak.
He wasn't sure what the other person was doing with their head down.
They're whispering...
still……
They are kissing.
oops!
Yun Wei quickly shook his head. In the temperature-controlled laboratory, he felt his cheeks getting hot.
If he goes out now, he might run into two more people on the stairs.
So, to avoid embarrassment, Yun Wei stayed for another ten minutes.
He tidied up the laboratory a bit, checked the lock on the door leading to the back alley, and then slowly turned off the permanent lighting array at the entrance before leaving the alchemy laboratory.
...
When Yun Wei stood at the door of the guest room, he hesitated again.
He lowered his head and stared silently at the brass handle on the door, as if trying to pierce through the engraved patterns on it.
The cold light reflected from the copper handles was a rare source of light in the dimly lit corridor.
The haze in Alchemy City was too heavy, so the moonlight here appeared more hazy than in Moonflower City.
It's already 11:30. I wonder if Isaac has rested yet.
Perhaps the other person has already returned to their room and didn't wait for him at all.
Yun Wei's gaze fell on the tip of his nose, but he couldn't help but purse his lips.
He took a deep breath and finally pressed down on the handle in one go.
Unlike the icy coldness of the handle when it rests in your palm, the cozy warmth of the bedroom, along with the comforting scent of wood, wafts over you.
The orange light, like a giant sword, pierced through the darkness surrounding him.
At the far end of the room, his knight sat quietly by the window, holding a book.
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