Upon hearing this, the prince of Zhu Zi Kingdom sneered.

Because in his view, this was simply impossible. Putting aside the fact that Zhu Yunwen did not know the principle, even if Zhu Yunwen could understand the principle with his own wisdom.

However, to make it, one needs to experiment with various materials.

For example, what to use for the wick, what to use for the fuel, and what to use to produce the spark.

These all require a long period of contemplation and verification, and must be adjusted to a suitable level before they can be used.

Actually, these things were no big deal to Zhu Yunwen.

If a time traveler doesn't even understand how a lighter, especially the most primitive kind, is made, its materials, and its design, then they truly deserve to be called a time traveler.

So Zhu Yunwen then spoke to the King of Baoxiang Kingdom:

"If Your Majesty doesn't mind, could you send someone to purchase some items I need?"

The King of Baoxiang Kingdom was someone who loved to watch the drama unfold, so he immediately nodded and assigned someone to Zhu Yunwen.

And he was instructed to cooperate with Zhu Yunwen and purchase anything Zhu Yunwen needed.

So Zhu Yunwen listed everything he needed on a piece of paper.

And it clearly specifies how the person should make it.

After doing all this, Zhu Yunwen sat there very comfortably and then said:

"It will only take about half an hour to get these things over. Since it's a banquet, I'm sure everyone is in no hurry, so let's eat and drink while we wait."

No one had any objections. After all, although they had heard that Zhu Yunwen was really powerful before, they had also witnessed his prowess in some places this time.

However, people still didn't believe that Zhu Yunwen could produce a cheaper and better lighter after seeing the lighter held by the prince of Zhu Zi Kingdom.

Moreover, even if it were made, it would only prove one thing: Zhu Yunwen already knew about this thing.

But this would be an even bigger blow to the prince of Zhu Zi Kingdom.