Okay, so this is a crossover between Percy Jackson and the Olympians, and Harry Potter. This takes place at Harry's sixth year, and after the House of Hades, (which didn't come out yet).This is my first crossover, and only my third story, so be prepared for some mistakes, :P. And please leave a review, even if you're reading this 30 years from now.

Percy Jackson sat down, trying to comprehend all that Chiron had just told him.

Apparently, a long time ago, Hecate (goddess of magic), had blessed several mortals, and given them powers of magic. They called themselves wizards. Those families, who called themselves purebloods, had been taught magic by a school named Hogwarts, in England. It was run by an immensely powerful son of Hecate, named Albus Dumbledore. So, these days, in order to have more students at Hogwarts, Hecate would bless certain regular mortals who she thought had potential.

However, these were shunned by the purebloods, being called muggleborns, or worse, mud-bloods. Hecate had taken no notice of this, however, so now there was this extremely dark wizard, named Voldemort,(with a long story with some boy named Harry Potter), who was trying to pretty much take over the wizarding world.

So Chiron had received a message from Dumbledore, who asked for his best demigod (him), to come to the school incognito, and help out Harry Potter (the boy who lived).

Percy sighed. It was a lot to take in.

He heard a knock on his cabin. He opened the door.

Grover was there waiting for him. "So, you ready to go this school?" he asked, concerned.

Percy shrugged, " I guess so." He lied.

Grover sensed it, being the annoying satyr he was. "If you want, I could come with you?" he asked.

"Nah, you go attend to your Lord of the Wild duties, G-man." replied Percy, cracking a smile. He knew that Grover was very busy ever since he had been appointed a lord of the wild a couple years ago, and that it would be hard to hide hooves and horns at a boarding school.

A horn sounded, it was time for breakfast. And it was also time for Percy to leave.

Grover spotted Juniper, his girlfriend, and ran off to her.

Percy sat down on his table, quickly ate his breakfast, and walked to Chiron.

"Ahh, Percy, are you ready to go, boy?" Chiron asked.

"Uh, sure." Percy replied. He had Riptide, a suitcase full of his clothes, and all the supplies needed for Hogwarts. He even had a special wand that would perform any spell he needed, even though he wasn't a wizard. But he still felt nervous.

Chrion smiled knowingly. "Alright then, Nico shall take you there." He galloped away.

At the sound of his name, Nico turned around from where he was polishing his sword

"You ready to shadow travel, Percy?" he asked, raising an eyebrow.

"Yeah," Percy replied. Nico took his arm.

"Oh, wait, Percy before you go, you must take this letter," called out Chiron who was galloping back towards them, a letter in his hand. He handed the letter to Percy.

"Do not open it."

"Alright."

"You ready?," asked Nico.

However, before Percy could even nod his head, he already felt that familiar cold feeling of shadow travel, and he suddenly appeared at a train station.

Nico cleared his throat." This is where I leave you."

"Bye," said Percy, waving off to him, already trying to find the platformed 9 and ¾.

He stopped at nine, and frowned. There was no 9 and ¾, there was only nine, and ten.

He sighed. He would just have to call Chiron. He picked up his stuff, and tried to lean on the hard rock in between platforms nine and ten.

However, this didn't work as he fell backwards onto a ground, in front of a scarlet train, saying Hogwarts Express.

He raised an eyebrow, "Well that was weird.", he thought.

He climbed on and into the train, and found an empty compartment.

Chiron had instructed him to find this boy, Harry Potter, and befriend him; but he was too tired after the shadow travel, and because of jet lag.

He fell fast asleep, a picture of him and Annabeth in his hand.

He woke to a red haired boy shaking him. His hand quickly went to riptide.

But then he relaxed, remembering why he was there.

"My name is Ron, Ron Weasley.", said the red-haired boy, extending a hand. Percy shook it.

A pretty girl with bushy brown hair, that was sitting next to him extended one as well. "I'm Hermione Granger."

Percy looked in front of him and saw a boy with dark hair, and green eyes and glasses, extending a hand as well.

"I'm Harry, Harry Potter."

Well that's the end of the first chapter, I'm writing the second, expect it to be up soon.