The fertilizer that Professor Sprout sells in the Hogwarts Favors Store is produced from the compost pitcher plant.

The Hogwarts family has a big business, and the amount of leftovers left after each meal is huge.

Therefore, Professor Sprout asked the Hogwarts house-elves to throw the rest of the leftovers into her compost pitcher plant mouths when they had finished their meal.

The house-elves happily accepted Professor Sprout's request.

These compost pitcher plants are grown in a special nutrient solution made by Professor Sprout, with a few pieces of foliage.

The house-elves carefully put the leftovers into the cage of the compost pitcher plant, and at the same time used magic to collect the nectar secreted by it, which Professor Sprout gave them, and although they were reluctant, they put it away.

When they make some sweets, they put in these honey juices as appropriate.

After receiving praise from the young wizards in general, especially Dumbledore, they completely regarded it as a spice.

The compost pitcher plant digests these leftovers, and after absorbing enough nutrients to grow on its own, it transports the remaining nutrients to the roots and then releases them into the surrounding environment.

As a result of Professor Sprout's design, the nutrients released by them are dissolved directly in the nutrient solution.

As the viscosity of the solution increases, and when there is some conjunctiva on the surface, the house-elves will replace the nutrient solution inside.

The fattened nutrient solution is sent to a greenhouse, where it solidifies into small particles of sand under the influence of the rudimentary magic pattern system, and finally packs it up and sends it to the storage room of the Room of Requirement.

During the design of the Hogwarts toilets, Professor Sprout and Professor Flitwick also proposed a mouthful of excrement collection.

Subsequently, based on Professor Sprout's needs, Professor Flitwick devised such a system.

The drainage system will unify the collected items into a single space.

In this space, a built-in system sifts through the composition of this excrement, removing some of the indigestible stuff of the compost pitcher plant and automatically buying it underground.

Next, the excrement is simply treated to make it a chyme.

The system then feeds these grains precisely into the cage of each compost pitcher plant.

These compost pitcher plants are in another place.

Here's how Professor Sprout designed it.

It was a large space, rectangular, with a sunken floor, filled with nutrient solution, with an inlet and an outlet, for the inflow of nutrient solution and the removal of nutrient solution.

The shelves are placed in the nutrient solution, on which are composted pitcher plants, and the roots are submerged in the nutrient solution.

The magic pattern system in this space will regularly locate the cages of these compost pitcher plants, and accurately feed the chyme excrement in the excrement space to their cages.

The amount of feed will also be changed depending on the position and size of the cage. This is based on the data provided by Professor Sprout.

However, no one collects the honey secreted by the compost pitcher plant, and it is allowed to fall into the cage of the compost pitcher plant.

The walls on each side of the long side meet the ground with a passage, one as an exit and the other as an entrance, fueled by magic.

The nutrient solution gradually thickens under the action of the compost pitcher plant and flows through the outlet into a large deep pond, which is the fertility separation tank.

The more fertile, thicker, i.e. denser part of the nutrient solution sinks to the bottom, while the less dense nutrient solution sinks to the upper layer of the separation tank.

These less dense nutrient solutions will re-enter the fertilizer tank through another opening, the entrance of the fertilization tank, and so on.

At regular intervals, the Magic Pattern system collects the fertilizing nutrient solution deposited below half the depth of the separation tank.

In addition, if the level of the nutrient solution in the entire cycle falls below a certain scale, the system automatically adds the nutrient solution to it.

If there is not enough nutrient solution stored in the preparation pool, the system will send an alert. The house-elves who receive the alert will immediately go out to replenish the nutrient solution in the preparation pool.

The whole cycle takes place in the dark.

Professor Flitwick modified the lighting of the system so that the white light only shines on the green part of the compost pitcher plant except for the roots, and it changes over time, roughly simulating the lighting environment in nature.

This drastically reduces the consumption of mana.

At the same time, the point of promoting the circulation of the nutrient solution is located at the outlet and the inlet, the outlet promotes the flow of the nutrient solution from the fertilization tank to the separation tank, and the inlet promotes the flow of the nutrient solution from the separation tank to the fattening tank.

There are also some places that are easy to accumulate, and there are push points.

Professor Flitwick did not let the system drive the entire nutrient solution cycle.

Although the space has been opened, the magic pattern system has been drawn, and the protective layer has been painted, the compost pitcher plant has not yet been planted.

After all, Hogwarts is on vacation now, and it is really not worth it to not have enough raw materials for them to digest, and to consume nutrient solutions in vain.

Still, the system was a success.

The testing ground is located at the Hogwarts Benefit.

On the left side of the store, Hogwarts has built a public beta that can accommodate 10 people at a time, with a full-fledged water and drainage system.

This is where some of the manure in the store comes from.

It was the first public toilet to appear in the wizarding world of England.

After opening, many wizards came to Hogsmeade Village for the biggest purpose of visiting the Hogwarts Huimin store, just to experience the public toilets.

Although it is a public toilet, the professors at Hogwarts have designed a special system for it.

The system cleans the toilet every 3 hours to keep it clean and tidy.

For 6 hours at night, the system will remain dormant, absorbing the surrounding mana to replenish the consumption of the mana pool.

As soon as these 6 hours have passed, the system will immediately enter the working state, and a cleaning will be carried out immediately.

It was only a few days before a customer came to Professor Sprout with a green crystal.

It turned out that one of her family's compost pitcher plants had withered and had a rather large green crystal inside.

Professor Sprout patiently explained the reason to her and told her that it didn't hurt the plant much.

But the customer was still worried, so he bought a bag of fertilizer and gave the green crystal to Professor Sprout.

The professor held the crystal and shook his head slightly, its crystallization was not yet complete, and some metallic colors could be seen inside it, which should be the result of the children's trick-or-treating.

Only fully crystalline green crystals have good value.

Without fully crystallized crystals, they can only be used as fertilizer.

The professors also have the idea of collecting them, but for the time being, there is not too much demand, and there is a shortage of manpower, so there is no recycling.

Compared to the popularity of the compost pitcher plant among commoner wizards, lamp grass is all the rage among noble wizards.

No, at the meetings of the Death Eaters, lamps and grass were used for decoration and lighting.

Although everyone wore various masks and similar black robes, everyone knew who they were.

The wizard sitting on Voldemort's left hand side, everyone doesn't have to think about it to know who it is.

Who else but Lucius Malfoy could be trusted by their master?

"Master, these ornamental plants still catch your eyes, right?"

Lucius said.

Many Death Eaters looked enviously at the lamp grass around them, and some of them cast jealous glances directly at Lucius.

Lucius was even more dismissive of this.

Voldemort's eyes slightly revealed some disdain, and he glanced at the lamp grass in the hall, there were blue and white, there were a lot of them, they were well matched, and the placement was okay.

"It's really good as an ornament, less practicality, remember, strength is fundamental, and strength comes from our blood!"

Voldemort glanced at the people present and said that only a few dared to look at him, and most lowered their heads.

"Understood, my master."

Lucius said respectfully, putting away the show-off he had faintly revealed before.

Noticing Lucius's change, Voldemort nodded.

This meeting was to test the purity of the Death Eaters.

Previously, several Death Eaters' plans had been revealed.

The first few times were fine, but it wasn't long after they started to act that the Aurors from the Ministry of Magic came to the end.

But, as if sensing that no one had noticed something was wrong, the traitor became more and more unscrupulous.

led to the next few terrorist activities, all of which were ambushed by the Aurors in advance, causing them to be miserable and many people were injured.

"There seems to be something wrong with the purity of our team."

Voldemort stood up, leaning sideways without looking at anyone, and tapped his palm with his wand.

Hearing this, some of the Death Eaters immediately chimed in, and they were the ones who had been injured in the plan.

"Why would anyone sympathize with Muggles who can't do any magic?"

Voldemort wandered the halls, and from time to time he came behind a wizard, and with his slender pale hand on his shoulder, he bowed his head and whispered in his ear:

"Will you sympathize with them?"

"No, these lowly mudbloods should be ruled by us!"

He shuddered and said loudly.

"That's right! They are so filthy that magic loathes them. ”

He changed his style.

"Look at our Ministry of Magic, the ultimate stupidity, the overflow of sympathy, and the damn weakness, why should we avoid them, and not them?"

"Why should we be constrained in our behavior? Why can't we, who control magic, soar freely in the world......"

With Voldemort's agitation and the blueprints drawn, the mood of those present was surging, as if they saw a future in which the wizarding world was completely under their control.

Voldemort didn't return to his seat, still wandering behind everyone.

He came behind a man and put his hands gently on top of him.

The man's body shuddered.

"Tell me, why did you betray!"

Voldemort whispered softly to his ear.

"No, master, I don't."

The man's body trembled and cried out loudly.

"You're lying! Drill the heart and cut the bones! ”

Voldemort snapped, a hand on his shoulder, his wand against his chest, and cast the Heart Drill Spell.

But looking at this posture, it is also quite kind.

The man let out a terrible scream, and Voldemort glanced over the hall rather cheerfully, and many people lowered their heads.

But there were also those who did not bow their heads, and they were the ones who had suffered in the action, and they looked at the man screaming in the chair with a look of anger and hatred.

Don't look at Voldemort's emaciated figure, but his strength is great, and the man in the chair is pressed by him, unable to curl up at all, and can only scream miserably.

From lying to confessing to begging for mercy, the man's voice quickly fell into a low voice.

Voldemort's wand retracted and walked behind him.

With a flick of his wand, the man regained his energy while he was restrained in his chair.

"Go, vent your anger! He deserves it, remember, use the [Drill Heart Spell], don't kill it. ”

Voldemort said in a slump and turned and walked back to his place.

The man showed a frightened look, and just as he wanted to beg for mercy, he was hit by a [Piercing Heart Curse], and he could only let out a desperate scream.

Lucius respectfully pulled out a chair for Voldemort and invited him to take a seat.

"Lucius, you don't have to go, I trust your loyalty."

Hearing this, many people who had no hatred also quickly picked up their wands.

The screams slowly became weaker, and the wanton laughter and angry scolding kept high.

In the end, the man's eyes were glazed, his body was constantly shaking, and his body exuded a disgusting smell.

The crowd cursed and returned to their places.

With a wave of his wand, Voldemort poured out powerful mana and threw the man outside.

"Don't let him die, send him outside and let the others see what happens against us."

Voldemort commanded Lucius in the lower left.

"Yes, my master."

Lucius respectfully responded.

Next, Voldemort gave another speech, stating his "philosophy" and stirring up the emotions of those below.

It seems that the Curse of Drilling has unleashed their arrogance, and while discussing their next move, they have revealed their plan to attack Hogsmeade.

And it was a plan to attack the shops that benefited the people at Hogwarts.

Voldemort directly refused, and encouraged his magic, and replied mercilessly:

"If you have what it takes to stand up to Dumbledore, I'll gladly accept your opinion."

Under the pressure of Voldemort's magic, he was forced to sober up and confess to Voldemort.

However, it is normal for them to have such thoughts.

There is no doubt that the man was a member of the family of Hogwarts Board members.

Hogwarts' Hogwarts Shop for the People program was not approved by them.

And in terms of the distribution of benefits, Hogwarts would rather give the Golden Galleon to those children than give them the school board that has injected money into Hogwarts every year.

This annoyed some factions.

However, Dumbledore was adamant that the funds belonged to Hogwarts and not to any individual.

There are many old people in the school board, and they are all from Dumbledore's generation.

For their generation, Dumbledore was their faith.

Single-handedly saved England from the dark wizard Grindelwald, and defeated Grindelwald in a duel by himself, ending his dark scare and bringing peace to the world.

With the support of these people, it is difficult for the pure-blood faction to achieve its goals.

Even if they had achieved their goal, Dumbledore would not have consented to it, nor would he have recognized its legitimacy.

This made them very irritated and angry, so they came up with this decision.

After listening to their explanation, Voldemort nodded, but an irrepressible disgust welled up in his heart, which reminded him of the past.