This is when harry first goes to Hogwarts and the 7 demigods are 12
Disclaimer, I do not own Percy Jackson and the Olympians, Heroes of Olympus, or Harry Potter. This is just fanfiction
Pipers POV
One day Jason, Leo, Percy, Annabeth, Frank, Hazel, and I were walking at the London train station at platforms 9 and 10. Some kid with black hair and a scar on his forehead came rushing at us, which was weird cause we were in front of a wall. But he didn't stop running, he kept on going, and finally, with his cart of luggage, rushed at us and plowed us to the ground, but we didn't hit the wall we went through it !!! "What happened ?" I asked. "Why didn't you more out of the way !!?" The boy with the scar asked. "We thought you were gonna stop." Annabeth replied "Well, my name is Harry Potter." The boy told us. "Well, I'm Piper and that's, Annabeth, Percy, Jason, Leo, Frank, and Hazel." I told Harry. "Well come on, grab your luggage, we don't want to miss the train." A red headed boy said to us. "That's Ron, and next to him is Hermione." Harry told us as we got on the train. We found an empty spot on the "Hogwarts Express" as Harry called it, and sat and talked. "What do you wands look like ?" Hermione asked as her, Ron, and Harry pulled theirs out. I searched my bag to see if I had a wand, and when the others did, we found wands, mine was wooden with marks that twirled around it that made it look pretty, Annabeths and Hazels looked like Hermione's, Jason and Percy's looked like Harry's, and Leo's and Frank's looked like Ron's, but mine didn't look like anyone's. Hermione was telling us about what she knew about Hogwarts from reading books, when the train stopped, and we grabbed our stuff and got off. "First years over here !!!" A big bearded man said. "Hagrid !!" Harry yelled as he ran and hugged the big man. We followed Hagrid and hopped in boats and paddled to the giant castle called Hogwarts. It was masive., and I could see that Annabeth loved it. We walked into the castle and some lady dressed in green tribes and a green witches hat walked over. "I am Professor McGonagall, and I want you first years in a strait line and wait until I tell you to come into the Great Hall." She said then walked into the Great Hall. "I wonder what house I will be in, maybe Ravenclaw, or Gryffindor, oh, I can't wait !!!" Some kid in front of Percy was saying. Professor McGonagall came out and said, "All right first years, follow me." So we followed her up to a table that had a stool in front of it, and on the stool, was a old witch's hat singing a song about Hogwarts. "When I say your name, you will sit on the stool, put the hat on, and wait until you are sorted." Professor McGanagall told us. "Anderson, Matthew." She called. "Hufflepuff" the hat yelled "Adams, Sally." "Ravenclaw" "Bennett, Danielle" "Gryffendor" "Chase, Annabeth" Annabeth walked up to the professor, and put on the hat. After about a minute later, the hat said, "Gryffendor" and Annabeth walked over to the Gryffendor table and sat down, and I could tell she was hoping Percy, her boyfriend, would get into Gryffendor too. And then I got scared, what if Jason, my boyfriend, isn't in the same house as me. But I calmed down and watched as 4 Slitherens, 3 Hufflepuffs, 5 Ravenclaws, and 6 Gryffendors were sorted, then the proffesor called, "Grace, Jason" and Jason walked up, sat on the stool, and put the hat on. After 30 seconds the hat yelled, "Gryffendor"and Jason looked at me and walked over to his house's table. Then, "Granger, Hermione" was called, and Hermione was sorted into Gryffendor with Jason. Then it was time for "Jackson, Percy" after about a minute, the hat yelled, "Gryffendor" and Percy and Annabeth hugged and sat down. After awhile, "Levesque, Hazel" was called. Hazel sat on the stool and put the hat on, after 20 seconds the hat yelled, "Hufflepuff" and Hazel sat down at her table. Then, "McLean, Piper" was called, and I slowly walked up to the stool, sat down, and put the hat on. "Hm, Huff-no, not Hufflepuff, so brave, so fierce," ''Gryffendor, please, Gryffendor'' I thought in my head. "Are you sure, you could do good in Ravenclaw or Slytherin ?" It asked me. "No, Gryffendor, Please." I said again. "Well, I guess then, Gryffendor !!" It yelled and I jumoed off, put the hat down and hugged Jason. "I'm so happy that we are together." Percy said. "Yeah, but I feel bad for Hazel, being alone." Annabeth said. After about 10 more names, "Potter, Harry" was called, and the hat called, "better be, Gryffendor" and Harry sat down next to Hermione. Then after a few minutes, "Valdez, Leo" was called, and Leo sat down and put the hat on, after 40 seconds it yelled, "Then, Gryffendor !!" So Leo came and sat with us. Then, Proffesor McGanagall called, "Weasley, Ron" and the hat yelled, "Gryffendor" and Ron sat across from us with Harry and Hermione, then, "Zhang, Frank" was called, and Frank put the hat on and it yelled after 10 seconds, "Hufflepuff" and he sat down next to Hazel, his girlfriend. After we ate, we were taken to our houses dorms, put on pur robes, and went to bed. In the first year girls dorm, was Annabeth, Hermione, Danielle, Alex, and I. Annabeth, Hermione's beds were right next to mine in the left wall, and Danielle's and Alex's beds were next to each other on the right wall. In the boy's it was Jason, Leo's, and Percy's beds on the left wall, and Harry, Ron, and Nevilles on the right wall.I hope you guys liked the beggining and will like the rest, and I will try to post every weekend or earlier, until then, Good bye.