Using urine to soften wool actually uses the saponification reaction. Animal hair usually has oil, and after urine is left for a long time, urea will decompose, releasing ammonia and generating alkaline substances. Wool will soften when soaked in this alkaline substance.

In fact, olive oil, laurel oil and wood ash can also produce saponification reactions. The famous Marseille soap is made in this way. It smells fragrant, but it is a bit expensive.

The Brera Palace is not far from Sforza's Castle. In the 14th century, it was called the Visconti Castle, but it was destroyed in the war. In 1447, Francesco Sforza married the daughter of Filippo Visconti, Duke of Milan.

After Francesco became the Duke of Milan in 1450, he rebuilt the former Visconti Castle. It is now a public place that not only displays artworks, but also has a large garden outside the castle for Milan residents to walk and relax.

But Zabini did not take Giorgione to the castle. He took her to the other side of the castle, which is the "old town" of Milan.

After Maria Theresa's renovation, it actually looks pretty good, with clean streets and many ice cream shops. Georgiana took the opportunity to eat several "gelato".

It looks and looks the same as ice cream, but this kind of "gelato" is a family workshop, and only locals know which shop is the best.

Zabini bought a basket full of strawberry flavor, cast a freezing spell on it, and took her to see Leonardo da Vinci's "The Last Supper".

It is in the Church of Our Lady of Grace. There are not as many tourists visiting now as in the 20th century. There were only a few people when they arrived.

It was quite shocking to see the painting up close. She especially stood in front of the eel on the table for a while.

Not to mention the people in the 20th century, when Leonardo da Vinci painted this painting in the 15th century, the monks in the refectory did not notice it.

After admiring the painting, they went to the opposite side, where the "Little Star" orphanage was.

The ice cream Zabini brought was quickly divided up. At the same time, he made an agreement with the children. This was obviously not the first time he did that. The children argued that they would not let the dean go to the backyard. Then Zabini took Georgiana to the backyard of the orphanage.

The backyard was full of trees. In fact, they could come in from outside the wall, but Georgiana planned to have a strawberry ice cream on the way back.

In the center of the triangular backyard, there was a circular fountain that did not spray water. Dead branches and leaves fell on it. It looked like it had been abandoned for a long time.

Zabini took out a silver coin and stuffed it into the mouth of a bearded sculpture in the fountain. There was a "clang, clang" sound.

When the sound stopped, the fountain cracked open, as if for people to enter.

"Come in." Zabini said to Georgiana, and he took the lead in stepping into the pool.

Georgiana lifted her skirt and stepped into the pool, and then the opening of the fountain closed again.

"Make a wish." Zabini smiled at her.

It must be said that the Zabini family was indeed very charming. She forgot what she was doing there for a moment.

After a while, she heard the sound of running water. She turned back subconsciously and found that the fountain behind her was actually spraying "mercury".

"I heard that you British use fireplaces to travel." Zabini said.

"Floo powder." Georgiana said, "If you want to go somewhere, just say it out loud and then sprinkle the Floo powder."

"I think that's very convenient." Zabini said, "Look how long we have to wait."

In fact, it didn't take long. The mercury quickly covered the entire fountain. They seemed to be standing on a silver plate.

"If you feel dizzy, close your eyes." Zabini said.

Before she could react, the outermost circle of mercury decomposed into fragments and floated in the air against gravity.

Then the fragments began to change color, just like a water screen movie, you can see some scenery, they change very quickly, making people feel dizzy.

However, this process was short, and soon the floating debris fell back to the ground. The scenery around the fountain was no longer the backyard of the orphanage, but a beautiful lakeside.

"I heard that the French Ministry of Magic is in the suburbs of the city." Zabini asked Georgiana, "Why not choose a place with better scenery?"

"The headquarters of the Italian Ministry of Magic is in Lake Como?" Georgiana asked.

Before Zabini could answer, a carriage was already driving towards them.

"The car to pick us up is here, let's go." Zabini said, walking forward on the green lawn like a carpet.

Georgiana considered whether to turn into a parasol, the sun was too scorching.

However, when they got on the carriage, a "thing" on the carriage scared her.

It looked like a goblin, but it was taller and darker than the goblins seen in Gringotts. The most terrifying thing was its eyes, which were bright red, while the goblins in Gringotts had black eyes.

"Good morning, Mrs. Sever." The goblin said in fluent English. "I remember you are British."

"Good morning." Georgiana also said in English. "You are..."

"You can call me Angeli. The correct pronunciation of goblin names is meaningless to humans." The goblin said.

"This is the Lombard goblin." Zabini said. "Angili is one of the five major families. They guard a silver mine."

"That's why we didn't follow others to leave Italy and settle in England." Angeli said, "Of course there's also that cave. We've been looking for it for years."

"That's just a treasure cave. There's no evidence that it's your underground kingdom." Zabini said, "And it's on the top of the mountain."

"Let's not talk about this now." Angeli said coldly, then looked at Georgiana, "Welcome to Italy, guests from afar."

Georgina thought the goblin was very polite. If Bonaparte sent a distinguished guest, he would personally send him to the door.

"This is a beautiful place." Georgiana said, "Please forgive my poor vocabulary for not being able to describe it."

Then Angeli talked about poetry. If you ignore its terrible appearance, it is actually a very elegant goblin, not like the goblins in Gringotts who always have a stinky face, as if every wizard who comes to withdraw money is a thief.

The carriage took them into the mountains, and then they came to a hidden cave. The carriage deformed after stepping on the rails, and it became the kind of car under Gringotts, and the horse pulling the carriage disappeared.

It seemed that every goblin could drive this kind of car. Angeli skillfully controlled it and shuttled through the tunnel.

After a gust of lightning, they came to the waterfall in the mountains. It was hard to believe that there was such an empty underground world in the Alps. There was a palace next to the waterfall, emitting a faint fluorescence.

There was a stone bridge from the end of the railway to the castle, but they did not get off. The mine car turned into a carriage and carried them across the stone bridge.

Although she had attended many balls, she felt that she was on the way to a court ball at this moment.

At this moment, she really wanted to let Severus see, but she glanced at Zabini who was sitting next to her.

In fact, she was still too careless. What if he was a bad guy?

It was better to be careful when coming to a strange country, so she was cautious and did not speak, so that only the crisp sound of horse hooves could be heard in the carriage.