Set six months after the House of Hades, and in the Harry's fifth year at Hogwarts. Percy Jackson, Son of Poseidon, Hero of Olympus and more recently, Survivor of Tartarus, has been given a quest. Along with his two cousins Nico Di Angelo and Thalia Grace, he must go undercover at Hogwarts School of Witchcraft and Wizardry for a year. Their objective? Protect Harry Potter, Ron Weasley and Hermione Granger. Harry has had a rough summer, what with the dementor attack and the Dursleys. He thinks life back at Hogwarts will turn things around, only to realize that he is facing a year of ignorance and scorn. When the golden trio meet the children of the Big Three, will they become friends, or worst enemies? *Currently being rewritten under the same author. I'm leaving this one up for anyone that still wants to read it, but you can find a slightly different, hopefully better version on my page*

Set after the giant war for the Demigods and in The Order of the Phoenix (book 5) for the Wizards. The seven, Nico, Will, and Thalia all go to Hogwarts the school of witchcraft and wizardry. While they're there a new problem will arrive for the demigods and the wizard's problem only gets worse. Will Percy and his friends stay on their mission and protect Harry? Or will he go help his family at Camp Half-blood? I DO NOT OWN ANY PJO OR HP CHARACTERS RICK RIORDAN AND JK ROWLINGS DOES

When Percy is summoned home from camp to see some weird people on his couch, let's just say he's confused. When he finds out that he has another evil relation, he's not happy. Well, off to Hogwarts. Harry is astounded. Voldemort- the lowlife scum of the wizarding world- has a grandson. Now Dumbledore wants him, Hermoine, and Ron to get him, and become friends. Harry must be crazy because he agrees to go. Set after PJO but before HoO ( I want him 15/16) and during OoTP Check out my other crossover: Percy Jackson - the New Hogwarts Teacher Cover created by @Emer28702000

The giant war is over. The Hogwarts battle is done. Many lives were lost. The boys thought their lives would be finally free of horror. But what they witness next is beyond what they have ever know. Join the two legions. Join Percy and Harry on there next adventure. Join Percy as he teachers at Hogwarts.

Nico is starting his second year at Hogwarts due to him not finding the horcruxes last year. When a mysterious chamber opens, and people accuse him of being the heir of Slytherin, what will happen to our little Neeks? Will he prevail? Or will he fail? (Rhyme not intended)

Camp half-blood is in chaos. Camp Jupiter just can't think straight anymore. Why? Because the only demigod son of Hades, Nico Di Angelo, is missing. No one knows where he went, why or how but they are determined to find him. The only person who seems to have an idea of his whereabouts is Hades but he has locked up the underworld and refuses to tell our heroes anything. Nico's sister Hazel is frantic and his boyfriend Will is worried out of his mind. But Hades can't throw the rest of the gang into this mess. No, it would be better if his son Nico does this on his own.

Percy Jackson demigod son of Poseidon,Hero of Olympus, is told the truth. That his mom isn't who she said she is and that his dad isn't his dad. He's adandoned by everyone except Sally, Leo,Jason, Piper,Hazel, Frank,and Nico. Hecate tells him of his past and reveals that he has a brother. He will do any means find him. Harry Potter famous Wizard ,Hero of Hogwarts , finds out something interesting in an old family Photo Album. He finds out he is not and only child ,he has a brother. Ron,Hermione, and Draco will help him in the path in finding him no Mather what. Little do they know ,Is that there looking for each other. *CURRENTLY EDITING IT*

The gods have Percy and Nico help the world that is unknown to demigods. The Wizarding World. Percy is changed into his fifteen year old self so he can fit in, and him and Nico are sent to help stop the war against Voldemort before it even starts. (This takes place after the Giant War and during Harry Potter's fourth year at Hogwarts. You really shouldn't read this if you don't like Percico.) *Art by Viria and cover made on Moldiv app*

Another prophecy, another quest. Seven demigods enrol as students at the Hogwarts School of Witchcraft & Wizardry. They're hoping to help the wizards and witches defeat...well, they have no idea. The poor demigods get an overflow of homework and boredom (or not?) as they wait for something to happen. But the Titan and Giant War were not the last war for the demigods, and neither was the Second Wizarding War the last for the wizards...this is. - Cover made with Viria's art Highest ranks - 1 in demigods, 5 in hogwarts, 3 in percy jackson, 1 in annabeth chase, 1 in nico di angelo, 2 in leo valdez, 4 in crossover, 1 in percabeth, 19 in harry potter, 11 in pjo, 1 in hp

The seven are living at the camps, hoping that life can finally be normal. Well, as normal as life can be for a demigod. Unfortunately, when Rachel gives them the next Great Prophecy, and they have to go to Hogwarts, life gets a little bit harder for them. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ The Golden Trio are going back to Hogwarts to redo their seventh year. When seven American exchange students come, the friends can't help but get suspicious. Why are they so powerful? All they know is, they have been through so much more then the seven Americans. Or have they? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -Disclaimer- I do not own any of the characters or the settings. Rick Riordan and J.K. Rowling do.