Time-Turner, Nighttime Wandering

Sirius and Lupin watched Harry's back slowly disappear, then turned and returned to the castle.

After buying what she wanted, Muya left.

In the castle corridor, she ran into Peeves, who was busy scaring young wizards everywhere.

"Hey, Peeves, are you interested in trying out some new products in the Room of Requirement?"

"Oh, hahahaha, new little prank toys? Oh, of course!" Peeves put away the water balloon.

Seeing this, several young wizards hurried away.

After leading him into the Room of Requirement, Muya left. The prank products inside were enough to keep him entertained for an entire afternoon.

She returned to the dormitory. Tom had nothing important to do today, so he was at home bickering with Calori.

Usually, Muya would quietly stay far away in situations like this, because if either of them spotted her, she would be forced into their argument.

Luckily, Grindelwald happened to have nothing to do.

She found a quiet place to practice. Grindelwald yawned, propping his chin up with one hand.

"Patronus Charm!" Blue specks of light began gathering, slowly forming a shape—a squirrel.

It seemed a squirrel was her Patronus. The squirrel affectionately rubbed against her before vanishing.

"Not bad." Grindelwald clapped his hands.

"With talent like yours, perhaps you could... Oh, sorry, I forgot." He smiled.

Muya put away her wand and asked, "Forgot what?"

"Nothing. Just some old matters."

Changing the subject, he curled his lips into a smile. "Do you really not want to learn Dark Magic?"

"Perhaps I could teach you a spell that would get your blood pumping. Think about it?" Grindelwald was like a big fox, tempting Muya to accept his offer.

"Oh, maybe next time." Muya smiled. She should still learn a little Dark Magic; it could help her deal with troublesome people.

Grindelwald shrugged