Hey guys hope you like this new fic. Read and review, please it's my first crossover.

Disclaimer: I don't own Harry Potter or Percy Jackson. Nor do I own any later bold writings in the story. That belongs to Rick Riordan.

Prologue

It was a fine spring day in fifth year and Harry Potter was enjoying a nice day outside with his two best friends, Ron and Hermione. Apparently Ron and Hermione have been arguing over how televisions work the whole time.

"Ron, it's very simple. You just turn on the tele and you find the channel you want to watch by pushing the up and down arrows and when you find something you like, just stay on the channel…"

They have been at this for almost an hour when some first year came running down to the tree that they were sitting under. He had a frightened look on his face because he must be scared of upperclassmen.

The boy held out a letter. He stammered, "I-I'm S-supposed t-to g-g-give this to H-harry Potter."

Hermione took the note, then said in a kind voice, "What did he ask you to tell us?"

"Um, he said to meet you in his office immediately. It's an emergency." Then the kid ran off to the Entrance Hall.

"What do you think Dumbledore wants, mate?" Ron asked Harry.

"Dunno. But, with Dumbledore you never know. Come on, guys."

With that, the three Gryffindors went up to the sixth floor to Dumbledore's office. As they reached the Gargoyle, they didn't know the password.

"Hermione, what's the password?" Ron asked.

"Well he usually puts it on the bottom of his letters, so let's just read the bloody thing.

Hermione opened the letter and read it aloud. It said:

Harry, Ron, and Hermione

I hope I didn't disturb anything important, because I had an urgent letter from a friend in America saying that he needs some Wizarding students to fight in a battle that will be coming up in a few months. I have selected a few students from each House that will accompany you on this journey.

Sincerely,

Albus Dumbledore, Headmaster.

PS: I greatly enjoy lemon drops

"Guys," Harry said, "The password is lemon drops."

"What is up with that man and his candy obsession?" Hermione said to almost no one in particular.

She faced the gargoyle and said loudly, "Lemon drop." The gargoyle turned and revealed a staircase. The three teenagers each stood on a step and in no time at all, they were at the door to Dumbledore's office.

Hermione knocked on the door. A nice loud, "Come in." was heard through the door. Hermione opened the door, and she, Harry and Ron saw a few selected students from every House, including Slytherin. Harry on the other hand, was not happy about Dumbledore's Slytherin choice because they consisted of the four people he hated most.

"Well, if it isn't the Dream Team, Potty, Weasel, and the Mudblood." Malfoy said coldly.

"Call her that again, Malfoy-" Ron started.

"Students, please." Dumbledore interrupted. "Now, the reason I have called you all here is because there is a friend of mine who needs your help. You all know the stories of the Ancient Greeks?"

Some students nodded, others said, "Yes sir."

"As I was saying, in the stories the Greek gods had children with mortal and they were either called Heroes, Half- Bloods, or the true term for it is called Demigods. Believe it or not, these stories are not myths they're real. And the gods have set up a summer training camp for them. In the near future, there will be a big battle against the gods and the titans and one child of the Big Three gods will make a decision that will either save or destroy Mount Olympus.

What I have called you all here for today is to learn about these heroes before you go to the camp that is located in America." Dumbledore pulled out a box that consisted of five books. The series was called "Percy Jackson and the Olympians."

"Oh my Lord new books!" Hermione screamed.

"These books will tell you everything you need to know about the demigods you are going to meet. So, I will leave you to it."

With that, Dumbledore was gone in a flash, leaving the sixteen students alone with five books in a case.

Hermione was the first to speak. "Well, that was odd."

"Yeah," Harry said. "Let's get reading so we can get out of here."

"For once I agree with Potty." Malfoy said. "We have better things to do, Right boys?" He looked over at Crabbe and Goyle, who were nodding their heads.

"Okay, so who wants to read the first book…" Ron picked up the first book. "This is called 'The Lightning Thief'"

"Oh, sounds cool. I'll read it." Hermione said.

"Wait," Ginny said out of nowhere. "Dumbledore said that these books are American. Wouldn't it make more sense if someone read them in an American Accent?"

"I agree with Ginny's idea." Ernie Macmillan from Hufflepuff said. "Who has the best American Accent in here?"

"I think everyone should say something in American," Hannah Abbot, another Hufflepuff student said. "Then we could decide who should start off reading."

Everyone agreed to this idea and said something in an American accent. Everyone had great ones, so they were fighting over who should read first.

Malfoy couldn't take it any longer. So he said, "All right, give me the bloody book." He snatched the book out of Hermione's hand and said in his brilliant American Accent, "Chapter 1…."

So, how did you like that? Should I continue? Review, please!(does really cute puppy face)