"That was really impressive magic." Twilight said, referencing the Patronus. Can you teach it to me?

"Are sure Twi"? Harry asked, concerned. "It's a really complex spell, the Patronus Charm, and I wouldn't want you to get too tired."

"Of course I am!"

"Okay okay. I'll teach you."

"Yay!"

A few Hours Later:

(P.S: Now it's the few minutes before Princess Celestia raises the sun)

"Okay Twilight. Ready to practice the Patronus Charm?" Harry was standing next to an old trunk, which had a boggart in it, ready for Harry to open it so it could turn into a Dementor.

"As ready as I'll ever be."

"Okay then...." Harry then opened the trunk, and the boggart, already changed into a Dementor, flew out. It then glided to where Twilight was. Twi focused, trying to get the spell to work.

"Uhhhh..." Twilight groaned as she strained. Then, CRACK! Harry had whipped out his wand and turned the boggart into a balloon, which deflated and flew back into the trunk.

Harry and Twilight, both tired, flopped onto the bed in Twilight's room. Harry was going to have to share her bed, but he didn't mind at all

"How was that for a first lesson?" Twilight bragged.

"You didn't even do anything." Harry pointed out.

Twi didn't respond.

"I'll introduce my friends to you when we get up Harry." Twi said.

"How do you know my name?" Harry asked, surprised.

"Don't you know about your book series?" asked Twilight.

"Never mind. Add showing it to me to the To-Do-List."

Then, Harry not bothering to take his glasses off, they both fell asleep.

Harry Potter and Twilight Sparkle: The Patronus Chapter 3: Harry and his books

When Harry woke up the next day, he found a stack of books with note from Twilight on the top one on the floor.

Harry, the note said. Here are the books you wanted to see last night. I went down stairs to cook breakfast, and left these here for you. After we eat, I'll introduce you to my friends. Twilight

Harry picked the first book off the top of the pile, and read the title: Harry Potter and the Goblet of Fire.

It was then that Harry knew the utterly imposible would occur, and this was just the start.