Although Don relied on rogue means to take away the magic books, Marianda marked each magic book with the second-level magic secret lock.

To open this magic lock, one needs to use a level 3 magic to disarm the magic.

A magician who can use third-level magic is already quite good, and there is no need to steal such a magic book that can only be read by low-level mages.

Bow her head again and ask Marianda for help, which makes Don embarrassed as well.

After all, he hugged someone just now, and now he whispered to beg someone, which also made Tang En feel very embarrassed.

In desperation, Don can only turn to Lucia for help.

It's a pity that the magic book in Lucia's hand does not store the third-level spell of dissolving magic, so Don can only roll back and quietly return Marianda's magic book.

Although he has now been promoted to a third-level arcanist, his magic methods are still very scarce.

Up to now, he didn't know any second-level magic, except for a little increase in mana and health, his magic level actually didn't improve much at all.

For Donn, the most important thing now is to learn spells, and only by fleshing out his list of spells can he play a greater role in battle.

To learn spells above level 2, you need to borrow spell books from Marianda to transcribe magic.

According to Marianda's request, for every spell book he copied, he needed to give Marianda three gold coins.

So the most important thing for Don is to earn gold coins to learn spells.

In fact, all of this is also due to Marianda's kindness.

If it weren't for their close relationship, the magician's books wouldn't have been lent to anyone else at all.

The knowledge of the mages is only exchanged with each other, and it is rarely passed on to each other.

Only some powerful magic families will impart systematic knowledge of magic among their family members.

In the general mage guild, the knowledge of magic is also very valuable, and it is impossible to ask you to transcribe magic books for a few gold coins.

The reason why Marianda took money from Donne and Lucia was not because of greed for money. Rather, I want to tell them that magical knowledge is very precious, and that there is never a good thing to learn magic for nothing.

Every little bit of magic you learn requires you to do your best.

This was also the case when Marianda was studying magic in the Floating City, and every one of her magic books came from her hard work.

In order to gain magical knowledge, the young Marianda did not know how hard she had to suffer, so she accumulated some magic books.

So in order to make money as soon as possible, Don has also been very busy these days.

He gave the Bruce and his few candles to sell to the merchants and nobles of the Emerald City.

Although the production cost of this candle is not high, because only a small amount of acid and base can be produced in the laboratory, the production is not high.

Don spends two hours a day and can only make thirty candles a day.

This candle has no odor, has a smooth surface, and burns for a longer time.

As soon as it appeared in the market of the Emerald City, it was widely acclaimed.

Although because of the wanted warrant, Bruce and the others did not dare to enter the Emerald City to sell, so they were made an extra layer of profit by the small traders in the city.

However, each piece of white ash can still be sold for a high price of thirty copper coins, and the share of thirty pieces of white wax per day is in short supply at all.

The sales of the white ash were so good that Don himself was taken aback.

This kind of thing does not cost much at all, except for the worthless animal fat, the most valuable material is chemical products such as acids and alkalis.

Chemical raw materials such as acids and alkalis, although Tangen cannot be manufactured on a large scale.

But with the help of laboratory production and magic, it is still possible to produce more or less every day.

According to the current market, Don can get nine silver coins a day, and within a year, Tang En can get more than 32 Imperial Gold Coins, which is quite a staggering amount of money.

Tang En has been joining the mercenary group for more than a year, and in the whole year of adventure, the total harvest is less than 10 gold coins.

Now just relying on the income of this white ash, Tang En's income surpasses that of Bruce's fourth- and fifth-level mercenaries by a lot.

For more than ten days in a row, the fame of white ash has grown, and it has become one of the most popular commodities in the Emerald City recently.

Countless noble ladies flocked to it, and in the banquets of high society, if you don't light a few white waxes, it will make people laugh at the stingy vulgarity.

Because Donn's daily output was small, thirty white waxes were simply not enough for the noble merchants in the Emerald City.

In recent days, the price of white wax has also risen slightly, reaching 34 copper coins each.

And the retail price of this commodity in the Emerald City is as high as 50 copper coins.

There were some nobles who held banquets, and sometimes bought a candle of this consumable nature with a silver coin.

Don's recent steady stream of income has gradually enriched the small coffers.

Even Bruce and Celtic, who run errands for him every day, can each get a tip of 50 copper coins.

Donne's ash business soon attracted the attention of Marianda and Lucia. Faced with a steady stream of golden imperial gold coins, the two seemed to have discovered a huge gold mine, staring at Don every day.

Faced with the two female magicians who were so powerful, Don could only hand over the ash making method in exchange for the magic book in Marianda's hand.

This time, Marianda was very generous and directly asked Don to transcribe all the magic books in her hand. Even Lucia opened her treasure trove of knowledge and let Don transcribe all the elven magic books she treasured.

With Donn's help, they selected ores, first fired experimental instruments such as glass test tubes, and then began to increase the production of acids and bases.

With the addition of Marianda, the yield of acid-base prepared in the laboratory has increased by almost five-fold, and with acid-base, the yield of white wax has also increased by several times.

After that, Donn also improved the recipe, adding rosin and safflower to make a new yellow rosin candle and a red wedding candle.

With Marianda and the duo on board, it took two hours for Donn's small team to produce 150 new candles a day.

In addition to the one hundred traditional white waxes, there are thirty yellow waxes and twenty red waxes.

Because of the increase in production, the price of new candles has also dropped slightly.

According to Don's statistics, the price of white wax is stable at about 20 copper coins each.

The price of yellow wax stabilized at 35 copper coins each, and the price of the smallest number of red candles rose to 50 copper coins per candle.

By making candles alone, they earn about forty silver coins a day.

Over the course of a year, according to the current sales situation, the profit in their hands can earn at least 100 gold coins.

In the past, the Dragon's Horn mercenary group, in addition to the huge expenses, may not have 200 gold coins left over every year. A small candle business can bring in income that can be as high as half of a large mercenary group.

Such a hot sales situation was really unexpected by Donn.