Within two days, Tom Sr. had found Karn a wizard Keitel who had just passed his N.E.W.TS pharmacy exam, and had been graduating from Hufflepuff for nearly three years and had not found a suitable job for the time being.

Keitel wanted to pursue a career in the wizarding world, but the N.E.W.TS certificate in Pharmacy was not very useful in the Ministry of Magic, and the potion shops in the British wizarding world had regular partners and potions apprentices, so it was difficult for Keitel to find a suitable job.

If it weren't for Old Tom contacting her, Keitel would have gone back to inherit her father's bakery and earn money as a Muggle to support the family.

This is not an exception in the wizarding world, although she can refine potions, but without the guarantee of a potion shop, no one will buy potions from her; Potions are such a subtle science that the slightest hint of awareness can turn a harmless potion into something highly poisonous.

As a result, most people would rather pay a little more to go to St. Mungo's Hospital or Slug's Potion Shop than buy potions from strangers.

Keitel also accepted the offer because of Karn's high salary, after all, the Aurors only earn between 1,500 and 3,000 Galleons a year, and she earns 100 Galleons a week.

Although she worked for a month, Karn revealed to Keitel that if she performed well, Karn would hire her as a Potions apprentice when Karn opened the shop in the future.

Karn's wealth had proved to Keitel through the house-elves that such servants had always been a symbol of great wealth, and that those who did not have any property could not afford to support house-elves.

Not to mention that Karn still has two, and after a little thought, Kettel accepted Karn's invitation, and with the promise of the Potions apprentice, Kettel even took out twelve points of skill to teach Hermione Granger, and even developed a Potions lesson plan to teach Hermione.

In addition to recruiting Keitel, Karn's biggest gain was the acquisition of two house-elves, Phil and Isaac, who became Karn's personal possession after signing a contract with the Ministry of Magic.

The Ministry of Magic also gave him a book on the prohibitions on house-elves, the first of which was that house-elves were forbidden to touch wands, and there were many other prohibitions.

However, these prohibitions were free for the Ministry of Magic, and Karn did not intend to abide by them anyway, and the servility of house-elves was already very serious, especially Phil and Isaac; Knowing that the house-elves would not betray, Karn naturally wanted to increase the elves' strength.

For example, they were allowed to practice attack magic or use wands, in order to better protect their masters, and even the elves would not refuse Karn's orders

Moreover, it is difficult for the Ministry of Magic to spy on house-elves, even if they know that Karn connived at house-elves, they will only be fined, and the most serious should be punished by the Department of Justice, and then Karn may be declared a dark wizard, but they cannot deprive the house-elves of ownership, unless Karn, the owner, is dead.

When Phil and Isaac arrived at Karn's house, they cleaned it up, and Phil was very good at cooking and cleaning, and Isaac sulked while cleaning the house because he didn't fight Phil.

Karn had issued several orders after they had become servants, one of which was that elves were not allowed to harm themselves without his permission.

The best way to do something wrong should be to reflect, so as to create greater value for the owner, instead of hurting yourself and hurting yourself, and asking the owner to spend Galleon to treat them, which is a secondary loss for the owner.

Karn instilled this in Phil and Isaac, who quickly accepted it as the truth.

One night, after Phil and Isaac had cleaned the entire building, Karn called in for questioning.

"Phil, Isaac, do you know how to attack magic?"

After hearing this, the two house-elves suddenly flashed panic in their protruding green eyes, and their hands were a little panicked and they didn't know where to put them, and said tremblingly: "Master, the elves will never make a move on the master..."

"Phil, I need you to protect me, and in my absence, you need to protect my goddaughter, Hermione Granger, so you have to have a certain strength, understand?"

Karn interrupted Phil without question, putting his master's safety first.

After hearing this, Phil and Isaac directly ignored the rule that elves could not train attack magic, and instead considered the safety of their masters.

"Master, our magic is a little different from that of wizards, but the attack magic is almost the same..."

After listening to the answers of the two elves, Karn knew a little bit of the strength of the house-elves, the magic and magic are somewhat different from the wizards, that is based on the different races, but the house-elves are natural magic masters, and many of the magic works a little better than the pure-blood wizards.

It's still that house-elves haven't touched wands, but according to Phil and Isaac, they haven't used wands since birth, and there won't be wandmasters who make wands specifically for elves, so it's not known how much a wand will increase their strength.

After that, Karn took out ten wands and asked Phil and Isaac to choose one to familiarize themselves with, if it was useful, it would belong to them, but when using it, it must not be seen by the wizard, and in case it was accidentally seen, the memories of witnesses must also be erased, which is Karn's request to Phil and Isaac.

Hermione was now studying with Keitel every day, in addition to potions, the first fifth grade of Charms class, Kettel could also teach Hermione by the way, so Karn added 50 Galleons per week to Keitel, because it extended her teaching time.

The house-elves also moved into Karn's new home in Diagon Alley, where Isaac is now resident and Phil runs back and forth with Karn.

With the protection of Phil and Isaac, Karn's two homes are very safe, and Phil and Isaac even added more basic protection charms to their homes, and it is impossible for those with weaker magic power than them to break through the elves' spells.

....................

"Dragon's blood is so hard to buy, it seems that in addition to trading with those powerful wizards, the only way to try your luck is to go to Tumble Alley..."

Karn has never been to Tumble Alley, just for fear of being deceived, those dark wizards are much more ruthless than the capitalists, Karn only asks for money at most, those dark wizards will not only cheat money, but also kill you.

But things from the regular way were too hard to buy, and dragon blood couldn't be bought, let alone the flesh of a unicorn, the blood of a phoenix, and the like, which was really hard for Karn.

Maybe donate money to Hogwarts? Karn remembered that Hogwarts funding had always been a problem, and that the donation of money to Lucius Malfoy was probably an important reason for becoming a member of the Board of Governors.

Karn thought about it for a while, but decided to take a trip to Tumbledown Alley to collect at least some of the flesh and blood genes of the magical creatures.