The Dark Lord had a grandchild that no one knew about. This grandchild had a story of their own from a totally different world. This grandchild was Percy Jackson, the savior of Olympus. Takes place during The Half-Blood Prince and after the Blood of Olympus. Keep reading to find out more.

Percy was looking forward to some down time with his girlfriend Annabeth after the Giant War ended. What he didn't expect was an old man claiming that he was a wizard. If that wasn't enough, it turns I out that he's not just any wizard, he's the grandson the the dark lord, Voldemort

PERCY wanted to live normally... Stupid old Fates. Turns out he has another evil grandpa. Dumbledore and Harry come to get him. But did they really need to knock him out? HARRY is furious. His worst foe is rising somehow again and this time he has a freaking grandson. They have to get him before Voldemort but should they trust him? UPDATE!!!!! I have broken my computer and it is going to get fixed soon. I will update right when it is fixed! I swear it on the River Styx!!! Until then I am going to go through and edit on my phone and tablet. Love you all, sorry for the inconvenience.

So, the demigods go to Hogwarts. Stuff happens. Yeah.

When Dumbledore discovers the grandsonson of voldemort, things start to get a little weird. He didn't mean for it to happen, it just did! Percy didn't want to be the grandson of another old cart who wanted to take over the world, it just happened. What happened when Percy goes to Hogwarts?

Harry Potter is used to being the Hero of his world. He and every other wizard believes he is the destined savior of the world. Now that wizard world knows Voldemort is back Harry is going to need protection. Percy Jackson has finally defeated Gaea and saved the world yet again and thinks things will start to calm down. Unfortunately for him, he is that protection. Except he can't do it alone. He is going to need the help of six certain people. Worlds collide in Demigods at Hogwarts. (Guys I suck at summaries. I swear the book is better.)

The Giant war is over and Percy Jackson is spent. Finally there's a chance he can be with Annabeth for a while and he eagerly awaits the summer they have planned together. But when Hecate shows up and sends Percy on a new quest, it could be the by far stupidest thing he has ever done. He must be the new teacher at Hogwarts. Harry Potter has been attacked by the Ministry and Dementors. If that wasn't enough he now has a new teacher. But he is like, a 17 year-old kid. Who looks a lot like him. It's Harry's 5th year and he is now a nutter to the wizarding world. So when he sees the kid show up at Number 12 Grimmauld Place, he starts thinking he might actually be mental. The new kid turns out to be a teacher. The teacher of DADA. But Umbridge is still there- as the High Inquisitor. It seems she watches the new teacher-Professor Jackson- a lot more than the others. Something is off about him. And the Golden Trio always tries to find out what.

After Gaea and Voldemort's defeat, various demigods enrol at Hogwarts. They befriend Harry Potter, fail homework assignments, and train the wizards to defeat Voldemort (who's somehow back from the dead) and his army of Greek monsters. But first...a bit of death gets in the way... ➵ cover by @ChloeCGS ➵ pjo / hp crossover