By the time the moon rises, the blown spherical glass has been cut into a spherical cover.

With a little treatment of the glue on the monster's body, the cover has been firmly embedded in the music box, and a miniature scale model of Grand Duke Xia De's castle in the Demon Domain has also been made inside.

Turn the clockwork, and when the music plays, the castle will be driven by the gears below and start spinning at a constant speed.

In order for the Grand Duke to hear longer and more complete pieces, Vincent also made a larger holding chamber and a larger sound cylinder, as well as carefully tuned dampers.

In addition to the mechanical structure that Vincent had made based on his previous knowledge, the magic stone inside the glass cover would periodically light up and go out according to a set time, simulating the effect of alternating day and night.

After the music sounds, the light and shadow changes as the castle and the landscape turn, which just match the melody of the music, and achieve a unique sense of harmony.

In fact, Vincent himself likes this miniature scene of the dojo in a snail shell, although this time there is a desire to please the Grand Duke, but the production still uses a lot of brains.

Whether it is mechanical technology or magic technology, it is difficult to achieve the current effect with only one of them.

After making it, Vincent remembered that his toy was still missing, so he asked Ninia to enjoy it together.

"Master, may I ask what this piece is?" Ninia listened to the melodious music and couldn't help but ask, "It's so good."

"It's called 'Autumn Whispers.'"

"Is it my brother's song?" It's rare for Said to be serious and ask a question, "I didn't expect my brother to compose."

"It's not me, it's Senneville and Tucson, they live in a distant country, and it would be better if there was a piano......

In order to keep it a secret for the time being, Vincent asked La Niña to turn on the soundproofing magic to ensure that Grand Duke Xia De would not overhear it first.

Next, several people did not speak again, just listened to the music, looked at the rotating glass music box and thought about it.

Even the seven-trick little demon Said, this time he didn't show an impatient look, he also listened to the whole song attentively, his eyes flashed with indescribable emotion.

The results of the experiment were good, and the participants and visitors were satisfied, whether they were demons or humans, nobles or commoners, they all thought it was a rare gift.

As a temporary guardian, Vincent, as his elder brother, went to the Archduke of Xia De with gifts and Said, and pleaded for help.

When the music box was delivered to the Grand Duke, the Grand Duke did not express any opinion, but just twisted the spring of the music box with ease, without asking for any explanation or introduction, and completely left the pleasure of using it to himself.

When the music played, both brothers looked nervously at the Grand Duke, fearing that the machine would malfunction or that he would be displeased in any way.

Thankfully, with the blessing of the gods of craftsmanship and art, the music box was successfully completed without any operational defects.

Grand Duke Xia De could hear it, and he actually closed his eyes and twisted his neck slightly, as if he was following the melody.

Vincent could tell from his expression that Syd had passed the test this time.

"Give me one first, and keep the other with you first." Grand Duke Xia De looked at another box with a completely different style from the last time, and said with satisfaction, "This piece is also perfect!"

"Music is a beautiful thing, the old man should enjoy one of them, and when he is satisfied, he will enjoy the other."

The Grand Duke is like this, he will always keep a unique treasure by his side, and the second one will mean far less to him than the first.

However, this is also a revelation to Vincent, maybe the Grand Duke does not need two similar glass ball music boxes, and he can use the protection to slightly modify this one and replace it with a different appearance and structure.

Compared with the contradictions that Grand Duke Xia De was about to deal with, Vincent knew that no matter how hard he tried, he might not be able to repay this favor.

However, he had shown enough respect to believe that the Grand Guild understood his true intentions of being willing to draw in a relationship with him.

"I can see that you are a rare musician, and I found it here again

The joy of music." The Grand Duke said with emotion, "Not only did I get a beautiful piece, but I also got an instrument that I could play repeatedly, and more than that."

"Despite your two requests for me, these are frequent aristocratic interactions, and the old man thinks that he has received a gift that is not commensurate with his efforts rather than a unique treasure. So, my child, if you have anything else to ask, I can still say yes."

Wow! Vincent didn't expect anything to say that his uncle would feel embarrassed and buy one get one free for himself!

As a Chaos Demon Clan, he still thinks that he owes something to others.

I really don't know if it's because my gift is too precious, or because the Grand Duke's conduct is too embarrassing - is it appropriate to describe such a big devil with a bureaucratic atmosphere?

If he refuses, Grand Duke Xia De won't think that he looks down on him, right?

The demons don't have as much vanity and grievances as the Terrans, especially the big demons, who prefer to go straight, do evil like this, and trade like this.

Faced with this beautiful event that he never thought would happen, Vincent didn't know how to express his thoughts for a while.

I want a lot, throw away those things that the Grand Duke can't satisfy and unrealistic, what else can I fight for?

It's better to have something that makes you safer......

"Uncle, you don't have to give me anything, I want to exchange one more thing with you." Seeing that the Grand Duke was in a good mood, Vincent pondered for a moment before making a request, "My servant lacks a decent weapon, and ordinary weapons cannot withstand her divine power, which will affect the strength of my army."

"Oh...... Is this this little Terran girl?" The Grand Duke squinted at Ninia and said lightly, "It's the Chosen of Light again, is this the fate that the Testcard family can't get rid of?"

"Brother, I want good things too." Said interjected, "I want ......."

The elder brother actually fought for the benefit not for himself, but for the slave girl, even if Said's loss, he really couldn't bear it.

"Shut up, you little troublemaker, it's none of your business." The Grand Duke reprimanded, "As a noble Chaos Demon Clan, don't surrender your identity and compete with the lowly slave girl for rewards, whatever you want, grab it yourself!"

Seeing that the eldest duke's face was not good, the deflated younger brother immediately hid behind his brother like a bullied little animal, with grievances in his eyes.

The pitiful appearance made the two young ladies present feel pity, and they couldn't help but want to hug him and comfort him warmly.

Seeing that Vincent actually took the initiative to ask for a change of weapon for herself, Ninia was almost so happy that she fainted.