Two brothers separated when their parents die but what happens when they meet again? What if one of the brothers wasn't completely human? how would it look if you throw magic into the mess? Well, in the great words of Percy Jackson the answer to that last question would be 'bad'. AU I do not own either series.

Harry Potter has a younger brother who survived Voldemort too. Then, before anyone could find the second son of Lily and James Potter, he disappeared, never to be seen again by the Wizarding World. Until, almost, fourteen years later. Dumbledore and Sirius collect him from Camp Half-Blood and they show him his true identity. His name? Percy Jackson. T for A LOT of language.

A collection of drabbles honouring the parents of the Percy Jackson and Heroes of Olympus cast of demigods, gods and mortals.

Getting caught in a wizard affair was not part of his plans for the evening, but he couldn't Mist his way out of this one either. Percy supposed in hindsight, giving two powerful wizards immunity to the Mist was a bad move on his part.

When Percy discovers a bump on his arm, Annabeth drags him to the doctor, saying that it's better to be safe than sorry. But Percy is neither safe nor sorry. He has cancer, and it may just wreck the strongest demigod ever.

Percy and Annabeth have returned from Tartarus, but beneath their happy visage, their cheerful mask, lies a sadder, more sinister story. Percabeth. Now a Oneshot series with fun and fluff included.

Harry is in danger with Voldemort rising. Dumbledore asks a certain centaur for advice, and Chiron willingly sends Nico to Hogwarts to protect him. Snape doesn't like Nico at all. Sort of Golden Trio bashing.

With the war against Gaea over, the seven, Nico and Thalia barely get a rest before Chiron informs them of the magical world of wizards and witches. Specifically, a boy named Harry Potter, who is entering his 5th year at Hogwarts. Percy's job for an entire year is to keep the Chosen One safe from Voldemort. But the evil wizard seems to know more about Percy than he should. AU

Dumbledore suspects Voldemort will make use of the Triwizard Tournament to get his hands on Harry Potter. So he seeks help from the Big Three demigods to protect Harry. Percy, Thalia, and Nico have to go to Hogwarts to protect Harry, undercover of a fourth participating school. But as suspicions rise, and Voldemort finds out about the demigods, will they get out of this alive?

Two worlds on the brink of elimination will be forced to come together after years of peaceful separation. Resting on the backs of a group of teenage heroes and being led by messy haired boys, will both worlds be able to be saved? Or will trust issues and insecurities lead to their down fall? Rated T for some language and dark themes

How come nothing is simple? Apparently, according to Chiron, there's another world out there, filled with wizards and witches blessed with the power of Hecate, hidden from "Muggles", as they called them. Percy Jackson, Nico di Angelo, Jason Grace, and my OC, Maladys Castellan, are sent to protect the Golden Trio from the wrath of Lord Voldemort and the Titan Lord Kronos.

Four of the most powerful demigods from Camp Half-Blood are issued a quest from the goddess Hecate to go to Hogwarts school of Witchcraft and Wizardry. Their objective: protect Harry Potter and his friends from the Dark Lord, all while trying to keep up their disguise. However there may be more threats than just Voldemort...Set before HoO. CURRENTLY ON HIATUS

A semi-monster hunt goes wrong and Thalia is forced to deal with a concussed Percy. Along the way, she learns a few things. Set between Sea of Monsters and Titan's Curse.