The sea has been changing, and for the worse. What is happening? That's the thing that's been worrying everyone. The answer to that question rests in the hands of the Avengers, Percy Jackson, Annabeth Chase, Frank Zhang, Hazel Levesque, Leo Valdez, Calypso, Piper McLean, Jason Grace, Nico di Angelo, Reyna Avila Ramìrez-Arellano, and Leila Darius. Ships: Percabeth, Jasper, Frazel, Caleo, and a little bit of Solangelo. Not much though. Happens before AoU. I ONLY OWN THE PLOT AND A FEW CHARACTERS, OKAY?! -da dam author The cover is made by @Laura-Laines who is just FABALICOUS!!!!!! Go check out her story "Numbering Graves".

In the worlds of Harry Potter and Percy Jackson, Harry is eating dinner in the Great Hall and Percy is being chased by monsters. How do the two worlds meet? Simple. Percy falls through the enchanted glass ceiling of the great hall unconscious. Percy doesn't know where he is, only that he's being chased by monsters. Fighting in the sky with Blackjack, there are only two monsters left. The monsters hit Blackjack and Percy with their clubs upside the head, rendering them unconscious and spiralling in different directions. As Percy plummets downwards, Riptide slips out of his hand and slices through the two remaining monsters, killing them out of pure luck. Or is it pure luck? When Percy wakes up in the Hogwarts infirmary and tries to leave, Hecate tell him to stay and protect the Boy Who Lived and his two closest friends. Except how is he supposed to protect people that don't trust him? Disclaimer: I do not own PJO, HOO, or HP.

Harry and his friends decide to go to camp for vacation, but what happens when news spreads of another elder wand? Lots could happen. Catastrophes like none before. Deaths upon deaths upon deaths. I ONLY OWN SYLVIA AND DA PLOT.

His time at Hogwarts is over, but the fight against Voldemort has just begun. Straight out of a barely complete Physical Therapy, Percy finds himself in the-middle-of-nowhere-snow-land with only a backpack and book, no knowledge of how he got there or how to get out. His test from the fountain of fate has finally begun and he has to solve whatever mystery that shrouds Emerson Earthfire. Facing the most difficult time of his life, Percy has to fight against death and the deadline of the fast approaching war, alone until the appearance of an unlikely face. All Harry Potter knows is that the place he called home is no longer safe; Hogwarts has been compromised. On the run with Ron and Hermione, the only safe place is Number 12 Grimmauld Place. Avoid capture, destroy Horcruxs, stop Voldemort, that is the mission. He doesn't have time to think about their friends at Hogwarts, the Order of the Phoenix, and-because it pains him too much to-Harry definitely doesn't have time to think about Percy Jackson's death. Avoid capture, destroy Horcruxs, stop Voldemort. Draco Malfoy needs help, and more than ever, he needs his best friend, Percy. But Percy's dead, he has to keep reminding himself of this, to stop the pain he feels when he forgets and has to remember again. Now, he's all alone in the evil life his father's trapped him in, wishing so much he could change it. Forced to follow the evilest wizard in history and wear a tattoo that hurts him to see, Draco's running out of time to find a way out. What's on the other side is something he could have never prepared for. This is a SEQUEL and will make a lot more sense if you read the first book. BUT, you don't have, though I encourage you to.