The four demigods - Annabeth Chase, Nico di Angelo, Percy Jackson, and Thalia Grace - are enlisted on a quest to go undercover at Hogwarts and help figure out what is disturbing the balance of magic. Relationships are tested, secrets are uncovered, and deities are discovered. * SPOILERS FOR THE PERCY JACKSON SERIES * SPOILERS FOR THE HEROES OF OLYMPUS SERIES * SPOILERS FOR THE HARRY POTTER SERIES * This fanfiction was written before the release of, 'The Cursed Child,' and, 'Trials of Apollo,' (TOA)

©All rights belong to Rick Riordan and J.K. Rowling Exept the plot The giant war is over, but it had great loss. The seven, but Percy, had died. His love, his live, his breath was taken away when Annabeth died. Thalia and Nico are the only ones who understand him. New Secrets, gifts and powers are opened. A new world. The big three, Nico, Thalia and Percy, are going to a new world, to forget theirs and save them. The battle is over, Harry is overjoyed. All his friends are still living except Fred, Tonks, Remus and Sirius. Even good old Dumbledore is dead. But they are memories, good memories. The golden trio, Hermoine, Ron and Harry, return with Ginny to Hogwarts. They are going to repeat their last year. This year is full of surprises, three new students, will go too. What is their secret? They are quiet, have secrets. Their life's can't be wors then Harry's right?

Percy Jackson a two time hero lost his love. All of the seven is dead including his wise girl. Now missing some limbs and out of the demigod world for at least a year what drama will enter his life. Instead of his father side, His mother has a few secrets up her sleeves.

What happens if Voldemort had a child with a Greek goddess? What happens if this boy has the power to defeat him, and other powerful people. But when the goddess sees the power hungry and evil she takes the boy to another continent, to be raised to be the hero the world needs.

What if Percy, Annabeth and Thalia aren't just demigods. What if Percy's mum is a witch? What if Annabeth's Dad was a wizard? What if Thalia, though her mum is mortal, what if she is a witch? What happens when they go to Hogwarts and be friend the golden trio? Be prepared for a whole year of trouble, fun and secrets. I do not own Percy Jackson or the Heroes of Olympus. Rick Riordon does. I do not own Harry Potter. J.K. Rowling does

It has been 2 years since the Giant War. Percy Jackson is ready to settle down and live a peaceful life with Annabeth. Yeah Right. After leaning a secret about his heritage. Percy goes to England and attends Hogwarts as a 8th year student. Harry is outraged. Voldemort has a daughter and grandson. He is sure his grandson will be just as evil as his grandfather. The time has come for the two parties to meet.

Percy finds out after the Battle of Manhattan that he has another evil grandpa. But how can his nice grandpa that he remembers playing with as small, turn so evil? Join Percy as he becomes a Hogwarts student and learns spells, incantations, and herbology, but not English, math or science. Watch his struggle as he will have to choose whose side he is on and whenever he is ever 'allowed' by the Fates to have a love life. *Percy is in this story 15 soon to be 16 *if I owned PJO or HP I would not have to think before buying a kebab, nor would I have put this in the category 'fanfiction'. I only own the way this story goes so don't copy this without asking me first, please. *the writing get better after a while, I promise *Male/Male, Female/Female, Male/Female

Set after Blood of Olympus and during Order of the Phoenix. Percy gets betrayed, goes to Hogwarts (insists on calling it Pigfarts), Harry thinks he is a Death Eater, you know the usual. *shrugs * All characters belong to Rick Riordan and J.K. Rowling. (except for the OC's)

It is three months after Gaea's defeat and Camp Halfblood is hanging by a thread. Percy is a shadow of who he was; a war hardened warrior. He takes on quest after quest to distract him from his losses, but he is still broken, no matter how much he tries to stay strong for the Camp. During a sudden visit to his mom's house, he gets a glimpse of her past while being pulled into another war. His PTSD is at an all time high and he was finally starting to accept their deaths when he discovers the woman he calls mom has her own skeletons hiding in the closet. And they are only now beginning to crawl out from the cracks. Albus Dumbledore and the Order of the Phoenix are running out of options. Voldemort is getting stronger while their numbers are dwindling. In a desperate attempt to gain allies, he tracks down an old student of his. Sally Jackson, or, as she was known, Sally Potter. Joined by some of her old classmates and friends, he tries to persuade her to join their war effort. To their surprise and disappointment, she adamantly declines only for the reunion to be interrupted by her teenage son. One who possess magic, the one they never knew existed. The Halfblood Wizard: Perseus Jackson. ~~~ Previously Titled Halfblood at Hogwarts New Title by HorcruxDemigods7 Cover by Inheritance21 ~~~ "You know when you find a bunch of 'okay' books on Wattpad but every once in a while you find one that you just have to stay up 'til the sunrise to finish? This was the book to make me stay. Percy's persona is wonderfully written, the grammar is perfect, and it is completely original. Well done and I can't wait to read the rest." ~Unrealqueen "DAM YOU ARE THE GODDESS OF WRITING" ~Labinzel "This is one of the best stories on Wattpad period. Not just in fanfiction or crossovers but out of all the books on Wattpad. This is THE BEST and my FAVORITE. You are such a good writer!!" ~fanficreader14 ~~~

The Giant War had finally ended. Everything was peaceful, or as everybody thought so. Luke makes a sudden reappearance, and everything in Percy's life tumbles down. Suddenly, he's being sent to a school called Hogwarts, who have accepted him inspite of his disastrous Math grade. But they teach more of Potions, Charms, Transfiguration amend Herbology than Algebra and English. Apollo's spirit of Delphi has disappeared. The prophecies cannot continue without it. Strange things are happening, all at once, and as far as Percy's life goes, he's never met a coincidence. Just monsters who need to be killed.