The Black Lake.
This is one of the favorite places for Hogwarts students, especially when the weather is pleasant.
You might even see some magical creatures in the Black Lake from time to time.
Ginny Weasley faced the lake, her face flushed.
Behind her is Lucas Grindelwald who followed her from the Forbidden Forest.
"Ginny, do you have something you need from me?"
"No, that's right, Mr. Grindelwald, can you teach me the Patronus Charm?"
Ginny turned to face Lucas and said loudly, then blushed when she realized she was almost shouting.
A few seconds later, just when she was feeling uneasy, thinking that she would be rejected, Lucas' gentle voice came from the front.
"Actually, you can just call me by my first name."
"I can?"
Overjoyed, Ginny looked up. Only then did he realize that Lucas was standing right in front of her at some point.
Looking at the redheaded girl whose cheeks became more and more flushed, Lucas took a modest step back.
Seeing this, Ginny felt a little disappointed.
"Come, draw your wand, and I will teach you."
"A Patronus Charm requires a happy, empowering memory."
"The power of the spell, in addition to the magic factor, the emotion brought by this memory is the most critical."
Lucas explained the main points in detail, then he personally showed Ginny how to cast the Patronus.
The two practiced continuously, not paying attention to the passage of time at all.
Until two hours later. Watching the silver light cast from the tip of Ginny's wand, Lucas smiled and nodded: "Yes, you are really talented."
At the same time, he also praised himself in his heart for his talent as a professor.
In fact, the people he taught would always learn way faster than normal and their spells would also be stronger.
Ginny put down her wand and with a sweet smile on her face, she said: "Thank you very much, without your teaching, I would not have learned the Patronus Charm so quickly."
"However, I still have a small request. I always feel that my movements are not very good when I cast it. Please, Lucas, can you help me to correct it, is that okay?"
Seeing Ginny's expectant eyes, Lucas couldn't bear to refuse.
Seeing him nod, Ginny's smile became even more touching. She hurriedly stood by the lake and cast the Patronus Charm again.
She looked at the blond boy beside her and thought, 'it's fine if I can spend an extra minute together with him'
She had clearly learned the spell already, but couldn't help herself in finding an excuse to keep Lucas for a little longer.
Ginny, absent-minded, became more and more clumsy in the movement of casting the spell.
Lucas frowned and reached out to take her wrist.
"Concentrate."
Feeling the breath coming from her side, Ginny almost dropped the wand in her hand.
She had to forcibly suppress the shyness in her heart before she waved her wand following Lucas' motion.
And in her mind, she thought of the scene in the Chamber of Secrets where Lucas came to rescue her.
"Now!"
"Expecto Patronum!"
Ginny subconsciously recited the incantation of the Patronus Charm and silver white light illuminated the nearby lake.
The light cluster gradually changed and ended up forming a silver white horse.
Seeing her own Patronus, Ginny quickly let go of her wand.
"What's wrong?" Lucas asked suspiciously.
Ginny shook her head, picked up her wand and said, "Maybe I'm too tired, thank you for today, I'll go back first."
Watching her run to the castle with a flushed face, for a moment Lucas wondered why she was feeling so shy.
At the same time, two groups of people were watching the situation by the Black Lake from a distance.
The first group is Hermione and Cho Chang.
Cho said with a light smile: "It seems that you are right, Ginny's heart was really stolen by that guy."
"Of course, in her first year of school, she encountered a terrible thing, and then her life was saved by a handsome Prince Charming. Anyone would be tempted."
"However, Ginny still needs a good test."
Cho looked at the good sister beside her: "Don't go too far, be careful less Lucas gets angry."
"Hmph, you just spoil him too much."
Cho blushed when she was exposed like that, picked up Crookshanks and fled back to the castle.
As for the other group of people, it was a first-year small group led by the little girl Astoria Greengrass.
Seeing Lucas holding Ginny's wrist, Astoria was feeling extremely envious.
After Ginny left, Lucas planned to return to the castle to rest for a while.
But even before reaching the entrance, he saw Professor Lupin sneaking out of the castle.
Looking at the direction he left, it was the road to the Forbidden Forest.
'I'd like to see how you bring that dog into Hogwarts!'
Seeing no one around, Lucas tore through the void and arrived at the Forbidden Forest.
"Point me!"
Lucas' wand that was placed on his palm immediately pointed in one direction.
What he cast on Sirius before was a spell created by Rowena Ravenclaw.
The function is to mark someone, and use the guiding spell to find out the location of the other party.
Certainly, this spell has some other minor effects, which won't be introduced for now.
Lucas cast the Disillusionment Charm on himself and walked in the direction pointed by the wand.
After a while, he saw the figures of Remus Lupin and Sirius Black.
"Too bad I never found the Marauder's Map with Filch."
"I'm pretty sure it must have been taken by some other student, and without the Marauder's Map, I can't be sure what you're saying is true, Padfoot."
"Woof~"
Lupin looked around vigilantly: "There is no one else here, quickly change back to human form!"
"Woof~"
The big black dog circled around several times, looking very anxious.
"Padfoot? What's wrong with you?"
Sirius whined to Remus for a long time and he actually understood.
This surprised Lucas who was hiding next to him.
Is this a special ability of werewolves?
Lucas felt the need to go deep into the Forbidden Forest and ask his werewolf Andrew.
After a while, Remus frowned and said, "You mean that Lucas Grindelwald cast some kind of spell on you so that you couldn't undo your Animagus transformation?
Seeing his friend nodding constantly, Remus frown became tighter.
Judging from his limited contact, Lucas Grindelwald is a kind person, so why did he use an Animagus locking spell on Sirius for no reason?...
After a while he seemed to have realized something and said with serious eyes: "Unless he knows that you are Sirius Black."
Sirius scratched the ground with his front paws anxiously.
Seeing his friend like this, Remus comforted him: "Don't worry, tomorrow is the third year's Defense Against the Dark Arts class, and then I will find a chance to test Lucas Grindelwald."
"If he really knows that you are Sirius Black, I will find a way to erase his memory."
One person and one dog probably didn't expect that their plotting was clearly heard by the person involved.
Lucas smiled silently.
'I hope that Professor Lupin will not cry in Defense Against the Dark Arts tomorrow.'
Seeing that Lupin has no intention of bringing Sirius into the castle for the time being, Lucas wasn't interested in staying here, either.
Just when he was about to turn around and leave, he suddenly heard Lupin talking about Professor Snape.
"Padfoot, Severus is here too, he's the potions professor at Hogwarts."
Hearing Professor Snape's name, Sirius looked particularly irritable.
"Calm down man, I'm just worried he's going to ruin our plans, you know, Severus has always been smart and very nosy."
Hearing this, Sirius snorted disdainfully.
Lucas couldn't understand dog language, but seeing Lupin keep nodding.
He guessed that more than one insult against Professor Snape was exchanged.
This made him loathe Sirius even more, and at the same time, his favor for Lupin also decreased a lot.
"Don't worry, I'll keep an eye out for the ginger fat cat, but this is the last time I'll trust you."
"If I follow that cat and can't find Pettigrew, I won't help you anymore, and you won't be able to enter Hogwarts Castle."
After saying these words, Remus turned around and walked away.
Lucas saw Sirius resting under the tree again with a sneer in his mind.
…
Deep in the Forbidden Forest.
Andrew was leading the werewolf pack to hunt near their territory.
Suddenly, a familiar space rift appeared in front of them.
Andrew is already used to this.
"Welcome, my master!"
"Get up, I don't like my people kneeling, Andrew"
After Lucas finished speaking, he handed over the bag in his hand to the other party. Inside is the Wolfsbane potion for the next few months.
Without waiting for Andrew to thank him, Lucas said: "Seeing that you have nothing to do every day, I will give you a task to exercise your body."
"There is a big Black dog on the outskirts of the Forbidden Forest. If you have nothing to do, go and tease it. Just don't kill it. Do you understand?"
Although Andrew couldn't understand why they were asked to deal with a dog.
But since they are the words of their master, it is just natural to obey.
"Don't worry, Master, I'll send some people to the outskirts later."
"Thank you!"
Lucas responded. Then he tore the Void again and went straight back to the Slytherin dormitory.
He tidied up and walked out of the room just in time to meet Draco, who told him that Professor Snape wanted to meet him.
He left the common room and went directly to his Head of House's office.
As soon as he entered the door, what greeted him was an annoyed Snape's verbal lashing.
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