Of course, this is also inseparable from Roger and Hermione's use of the Happy Charm to assist in practice, and adding a happy buff to yourself before casting the Patronus Charm can always make a difference.

And he also ordered a lot of joy potions in the potions shop in Diagon Alley, and it is estimated that he will be able to deliver them tomorrow morning, but he doesn't believe that the learning progress can't be improved with the double buff.

And go to Azkaban and bring a few bottles of Joy Elixir, and you can run a few more steps when you are besieged by Dementors.

For the next few days, Hermione and Roger spent all their free time practicing the Patronus Charm, and Harry stopped practicing it after practicing with them a few times. He wasn't like Hermione, who was able to handle a lot of homework with ease, and he wasn't like Roger, who could spend a lot of money to write for him.

Especially after Hermione didn't borrow his papers, Harry was so distracted by his heavy homework that he didn't have the heart to find out what the two friends were doing to practice magic every day.

When Hermione finally summoned a silvery-white translucent, ghost-like otter with the double bonus of the Happiness Charm and the Elixir of Joy (Roger could still only summon a piece of mist), Dumbledore called Roger to the Headmaster's office again.

"Did he get the map, and should we do it tonight?" Hermione asked Roger after the seniors had left.

"I'll discuss this issue later, I'll go to Lao Deng to see the situation first. Roger tore up the note with the office password and threw it into a wastebasket next to the hallway, saying nonchalantly.

Hermione couldn't help but be a little worried, but she couldn't help but say it, and watched the boy walk towards the principal's office on the seventh floor.

If you want to save Harry's life, you have to do it, and you can't pick on it because you're nervous and scared...

Roger walked into Dumbledore's office with ease, the bits and pieces on the desk spinning as usual, spewing small puffs of smoke and making a dinging sound.

The old man sat behind the desk, looking at an old piece of parchment in his hand through his half-moon-shaped glasses, and when he heard the door open, he raised his head: "Come on, sit down." ”

Roger unceremoniously pulled out the stool and sat down: "Did you get the thing? a little later than I thought..."

Dumbledore put down the parchment in his hand and pushed it to the boy, "This thing is an antique... No one was going to stay in Azkaban for much except for the sorcerers who had committed crimes, so I had to go to the Ministry of Magic and find this architectural drawing that was originally designed when Azkaban was built. It's not easy to find this among the moldy papers that are piled up in the archives. ”

Roger nodded understandingly, and pulled the musty parchment in front of him: "You can imagine how unpopular a prison surrounded by Dementors is... This place marked with a red cross is Lestrange's prison cell? On the twenty-seventh floor..."

The boy moved the smelly parchment aside and complained, "Azkaban has thirty floors, and it seems that the wizarding world is not as peaceful as it seems. Gee... It's a little scary. ”

In fact, this thing knows that the wizarding world has no other punishment except for imprisoning people in Azkaban, it is just a difference in the length of time. It's not new, but it's effective. And the abolition of spell casting rights is a term only for underage wizards...

Dumbledore ignored the complaint, but looked at Roger with a sharp gaze that seemed to be able to see through everything, and asked, "I have already got the most important things, how are you ready?"

"Everything is ready, just the map. Roger didn't want to drink too much of the old glass and was left alone, so he folded the parchment in half and stuffed it into his pocket a few times and stood up.

"Is everything really ready? Even if you master the Patronus Charm, so many Dementors won't be easy to deal with. Dumbledore didn't hold back, but just said to the boy's back.

"I'm going to cast spells outside of school anyway, just keep an eye on the Ministry of Magic and don't let them find out I'm in Azkaban with traces. Roger didn't answer Lao Deng's question, waved his hand and opened the door and walked out.

As soon as he reached the hallway along the spiral staircase outside the door, he was dragged by Hermione, who was waiting behind the ugly stone statue.

"How's it going, didn't Dumbledore give you the map?" the girl asked.

"Right in there," Roger patted his pocket, then waved his hand, "Hurry back to the lounge, we need to plan our route... Twenty-seven floors... Just climbing the stairs is tiring enough..."

Azkaban is a prison established by the Department of Magical Law Enforcement on an island in the cold waters of the North Sea, and its exact location is unknown to the general public.

Like Hogwarts, Azkaban is not mapped, has an anti-illusion spell, has no fireplace to travel with Floo Powder, and even the portkey is invalid when it comes to being within range of Azkaban, and there is no quick way to get there other than by water.

After all, it was a prison, and even if there were Dementors as a solid barrier, it would have to prevent robberies or prisoners escaping.

The only good news was that Azkaban was unwalled, and you could just open the gate and walk in when you arrived at the island. Because there is no need for walls and water to keep prisoners in place.

Because the prisoners are in the hands of the Dementors, they don't have the simplest thoughts. Most of the inmates went completely insane within a few weeks.

"So, how are we going to cross the North Sea to Azkaban, how are we going to get in there, and how are we going to get out with one more person safely?" Hermione asked as she looked at the moldy parchment.

"I have a two-hundred-year-old three-masted sail thrown on the Thames to eat ashes, and we can ride that past, after all, you don't need a sailor or a captain or anything like that if you can use magic. Roger Mo rubbed his chin and said with some emotion: "Actually, I would like to get a helicopter gunship, but I can't be sure if such a complex modern tool as a helicopter can be manipulated by magic like a sailboat..."

"If a helicopter is lost at a military base, it will attract satellite tracking, and we are going inside to save people, not the army with LinkedIn Gran to level there." Hermione still knew this kind of common sense, and immediately spoke out to dispel Roger's delusions.

"Alas, I always feel that I am angry with a man known as the Dark Lord in China, and the pattern is a bit small... Our goal should be to look at the world. Roger suddenly sighed and said a little dejectedly.

"Hehe... Don't digress, you haven't said how to get into Azkaban. Hermione sneered, waving the old architectural drawing.