Hogwarts wizards who signed in to Middle-earth...

"Armor for protection!"

Dui was prepared; the moment he threw in the porcupine quills, he applied a protective barrier to the pot, covering the liquid inside and preventing it from splashing.

Once the liquid in the pot had calmed down, Dui conjured a glass bottle and floated the highly corrosive liquid into it.

Looking at the iron pot again, it was corroded and riddled with holes, making it completely unusable.

Even if Dui tried to repair it with a restoration spell, the iron pot could not be restored at all.

Seeing this result, Dui was not surprised but rather pleased.

The potion book specifically warns that when making scabies potion, the fire must be turned off before adding porcupine quills, otherwise the potion will dissolve the crucible and become a highly corrosive liquid.

But Dui had a different opinion after seeing it. Although this failed scabies potion was unusable on humans, it possessed extremely strong corrosive properties, far more powerful than sulfuric acid. If used on an enemy, it would definitely be a deadly weapon.

Bilbo, who also witnessed this scene, looked at the green liquid in the bottle with awe, not daring to get close, for fear of being touched and dying.

After completing the scabies potion and both the finished and failed attempts, Dui began to try to create another magical potion—the shrinking potion.

Shrinking potion is a magical potion that shrinks or reverts a creature to a juvenile state; it is typically a bright green, acidic liquid. It can be used to fight large monsters with high resistance to spells, or to transfer livestock—shrinking an entire herd of pigs, cattle, or sheep into a wizard's pocket.

Similarly, if a wizard drinks a shrinking potion, his body will shrink rapidly, and the stronger the potion, the smaller the individual will be. This is often exploited by some unscrupulous wizards to shrink their bodies and sneak into other people's homes or vaults to steal.

The ingredients of the shrinking potion are not too complicated. The materials include shrinking fig, daisy root, caterpillar, mugwort, leech, rat spleen, and hemlock essence.

Apart from hemlock extract, which needs to be extracted from hemlock, all other materials are available in Dui.

Duy first set up a silver crucible, then chopped hemlock into pieces and ground it into powder in a mortar. He then poured the powder into the crucible and boiled it, constantly stirring with his wand and adjusting and controlling the heat to ensure that the essence in hemlock could be fully dissolved in the solvent.

"Separate left and right!" With a wave of the wand, the liquid and powder residue in the crucible separated automatically. The residue was filtered out and cleaned up, leaving only the potion to continue boiling.

Eventually, the broth was boiled dry, leaving only a layer of grayish-white mud at the bottom of the pot. This is the hemlock essence needed to make shrinking potions and other magical potions.

With hemlock extract, Dui officially began making shrinking potions.

Shrinking potion is a second-year course in Potions. It is more complicated to make than scabies potion. It requires mixing and adding ingredients such as shrinking fig, daisy root, caterpillar, wormwood, leech, rat spleen, and hemlock essence one by one.

Moreover, the production time is longer, requiring more focus and greater care.

Dui first juiced the wrinkled figs, keeping the peel and pulp, and then simmered the juice in a crucible over low heat for 20 minutes.

Add daisy root and caterpillar, bring the potion to a boil. The potion will turn dark green. Then, boil it down to half its original volume, turn off the heat, and let it cool for 30 minutes.

Once the cooling time is up, add 24 drops of wormwood infusion, one drop at a time, stirring with your wand in alternating directions after each drop. Before adding the last drop, stir vigorously to create foam, until the surface of the potion is covered with foam.

Dui stopped what he was doing and began to attend to other things.

Because the potion needs to stand for 24 hours until all the foam disappears before it can be used again.

The next day at the same time, Dui reheated the potion that had been left to stand, added leech juice, and then stirred it carefully and slowly. The color of the potion began to lighten.

Once the potion turns pale green, add rat spleen and hemlock extract, and heat over high heat for 2 hours.

Two hours later, the potion turned bright green and had a thick, syrupy consistency.

Looking at the potion in the crucible, Dui peered over and examined it closely, comparing it with the description in the book.

"This should be a success, right?" he murmured uncertainly.

To see the effect, an experiment was needed. Dui took a drop from the crucible, put it on a carrot, and then took the carrot and went out.

Curious Bilbo followed closely behind.

Dui arrived outside Bag End and saw the ponies grazing outside. He immediately waved the carrot in his hand at them, "Hey, Dui, look here!"

The short-legged horse, Xiaodai, was a substitute tool given to Dui by the head of the Tuk family when Dui was in Tak Town. Although it was very obedient, it always seemed a bit silly, so Dui called it Xiaodai.

However, after returning to Hobbiton, Slowpoke was basically taken care of by Bilbo. In contrast to Dui's irresponsible master, Bilbo was much more devoted, treating him almost like a third member of the family. He even personally built a simple stable for Slowpoke.

Upon seeing the carrot in Dui's hand, the short-legged horse Xiaodai's eyes lit up. It immediately abandoned the fresh grass in its mouth, ran over happily, and then took a bite of the carrot and began to chew.

Bilbo was too late to stop him and looked at Dui with concern, his eyes condemning Dui's bad master's drug experimentation.

Dui touched his nose guiltily. There were only three living beings here. Could it be that he or Bilbo would be used as test subjects instead of Little Dudley? Besides, he was very confident in his potion and was sure it wouldn't kill Little Dudley.

Meanwhile, his attention remained focused on Xiao Dai, observing its changes.

As soon as the short-legged horse Xiaodai ate the carrot containing the shrinking potion, its body began to change in less than two seconds.

"Neigh!" Little Dai panicked. In its eyes, everything around it, including its two owners, became enormous.

In Dui and Bilbo's view, the short-legged pony, Stubborn, was visibly shrinking, eventually becoming a tiny pony the size of a palm, looking like a living figurine.

Dui picked up Little Dot in his hand, looking at the little pony frantically flapping its four little legs in his hand with a look of wonder. "It seems the potion works well. One drop can shrink it to this size. If a few more drops are added, it should become even smaller."

Bilbo stared at the little potion in Dui's hand, speechless with shock. Although he had witnessed many of Dui's magic before, such a magical potion still amazed him.

Seeing that he was staring blankly at Xiaodai, Dui handed Xiaodai to him.

Bilbo carefully took Little Dull in his arms, cradling him in his hands. Feeling his weight and warmth, he realized he wasn't dreaming. Staring blankly, he looked up at Dui and stammered, "Dui...Duiel, will Little Dull always be like this?"

Dui shook his head. "Of course not. It will return to normal once the effects of the drug wear off. So you have to be careful not to get crushed under the horse after the effects wear off."

Upon hearing this, Bilbo quickly put Little Dodger down on the ground, as he didn't want to experience being crushed by a weight of several hundred pounds.

After about fifteen minutes, the effects of the drug wore off, and the shrunken little dummy quickly swelled up and returned to its original size.