"You're welcome. ”

Mei Lin withdrew her gaze from the magic stone: "We also met our old friends in another country, even if I help you for free this time." ”

"How can this be?" Arthurph's head shook like a rattle: "You are already grateful to find someone to help me refine the potion, how can you let that adult work in vain?"

He apparently thought that Merlin was asking his mentor for help.

"Don't worry. Mei Lin said as she took out six high-grade concentrating elixirs from her arms: "If I remember correctly, there is also a female apprentice named Keli in your academy, after you return to the Shuiyunjian Academy, bring these six bottles of concentrating elixir to them separately, just say that it is a gift from the old man, even if it is a reward for me, I hope we will have a chance to meet again." ”

Arthur was not stupid, seeing Merlin's expression, he guessed a few points, and without asking more, he put away the six bottles of potions, and said angrily: "Don't worry, I will definitely do it for you." ”

"Hmm. Merlin nodded, she still believed in Arthurph's character, unlike the ordinary apprentice cunning and snobbery, this was a very bold fellow. The most important thing is that with the improvement of the other party's level, if he wants to continue to obtain intermediate and high-level elixirs, he will most likely have to ask himself for help, and the high-grade condensing elixir actually does not have much meaning to the third-level apprentice, Arthurf is a smart person and knows the trade-offs.

After sending Arthurf away, Merlin went into the lab and began to study the recipe for the potion she had just bought, and Avery had already prepared all the materials he needed.

On the long table in the room were a large number of crucibles, a miniature heating device that continued to heat the strange solution that had been shelved in the crucible.

Mei Lin, whose eyes were red and her face was a little ugly, sighed and slowly poured the ground material into the heated crucible.

With a bang, a cloud of white smoke rose from the transparent crucible, gathering and floating on the upper part of the crucible, and the air was immediately filled with a pungent smell.

Maintaining the spiritual power of the solution in the crucible, Mei Lin quickly poured the prepared tube of yellow liquid into the crucible that was still heating, Mei Lin's eyes flashed with red dots, and her trace of spiritual power closely monitored the subtle changes in the solution in the crucible, while chanting a spell to maintain the transmission of energy.

Temperature, concentration, energy, time for effect to decay after mixing......

And when the color of the solution in the crucible just changed, a small handful of plant powder that had been pierced into the brain was thrown into it by her, and Mei Lin was keeping the energy transmission of the crucible and the spell uninterrupted, stirring rapidly, so that the newly added powder could be fully fused.

After more than ten seconds, the white air mass that had been condensed above the crucible gradually dissipated as Mei Lin stirred the crucible, and the color of the solution in the crucible began to turn moon white, and it also exuded a faint fragrance.

"Eighth ......" Merlin sighed softly and poured the moon-white solution from the crucible into a test tube, which already had more than thirty of the same potion on the table.

A total of fifty materials have been prepared this time, all of which have been consumed by Mei Lin, but there are only eight Moon Essences that she has successfully refined directly, and eleven of them have been completely scrapped, and the rest of the potions have been purified by the 'stars'.

The refining of the Moon Essence Elixir is much more difficult than the Condensing Elixir, and now Merlin's success rate is one tenth higher than that of a formal pharmacist, so Ingram, who is in charge of guidance, is very satisfied, but Merlin herself is not very happy, and instructs Ingram to help count the reasons for the failure and recompile the refining process...... What is the purpose of a dog's leg? It is in these trivial things that its value can be revealed.

This pharmacy test took three days, and the first thing Merlin did when she came out of the laboratory was to take a shower, and she felt that her whole body was a little stinky. Summing up the lessons of failure, there are two main aspects.

On the one hand, there is the problem of her own spiritual power, with her current spiritual power, refining the elixir of the Moon Essence is really a bit difficult, and she needs to further improve her spiritual power...... In fact, Merlin is also a little too strict with herself, on the other hand, the reason is that the formula is lacking, if you change to a complete formula, the success rate will definitely be higher, although Merlin and Ingram have tried more than a dozen materials, but they have never been able to deduce a complete formula, and they are helpless. If it weren't for the big cheat of 'Star', the success rate would not be as good as it is now.

As soon as she cleaned up her rope, the communication crystal ball buzzed, and when Merlin took it to look at it, it was Avery again.

"What's the matter?" asked Merlene.

"Someone wants to see you. Avery said.

"See me?" Merlin was a little puzzled, if she wanted to order some alchemy products from her, Avery said directly, not so vaguely.

"A second-level apprentice, named Scarlett, the recipe for the Elixir of the Moon Essence flowed out of her hand, and she hopes to see you soon. Avery said.

Interesting.

Merlin pondered for a moment and said, "You can arrange the time, and let me know when the time comes." ”

"Yes......"

Avery was quick to get things done, and the meeting was arranged in less than a quarter of an hour.

In a box, Merlin met Miss Scarlett, a second-degree apprentice, and did not take her seriously, and what made her notice was that the girl had a good so-called 'aristocratic upbringing', which showed that she was of very good origin.

"Scarlett, I'm Merlin, what's the matter?" asked Merlene straight to the point.

"Hello ......"

Scarlett paused slightly, "I knew that the elixir recipe for the Moon Essence was bought by you, but I didn't expect Miss Merlin to be a pharmacist." ”

"Oh. Mei Lin was noncommittal, she knew how to refine potions, and she didn't deliberately hide it, but no one knew about her achievements in potions.

Seeing Mei Lin's attitude, Scarlett was also a little helpless, so she had to continue: "I know that the Moon Essence is very important to your cultivation, but you only have a missing formula in your hand, don't you want to get a complete formula?"

"What conditions?" Hearing that it was the complete formula, Merlin's eyes flashed slightly, and finally showed a somewhat interested expression.

"What is your success rate in refining the Moon Essence?" Scarlett replied without a positive response.

“...... Tenth. ”

Merlin looked at her for a moment before replying...... She deliberately said less.

Scarlett's face was as usual, but there was a turmoil in her heart...... Although it was clearly stated when selling the recipe that there would be one effective potion in ten finished products, this result was the success rate that a potion master could achieve before the family declined, and after the sorcerer inheritance in the family was broken, even the complete potion recipe was rarely refined.

"Worthy of being a student of the dean!"

Although she tried her best to hide the surprise in her heart, Scarlett still praised it from the bottom of her heart.

Merlin just smiled and didn't say anything.