A new prophecy prompts the Nine to worm their way into Hogwarts, protect Harry Potter, negotiate their lives around magic, and above all NEVER reveal their true identity. But more things are at stake than just the boy's life: forgotten creatures and deities stir as demigods return to the isles of modern Albion, and events reveal that the fate of magic itself may be in question.

So, What happens when the seven go to Hogwarts? Will Umbridge decide that they are half-breeds and kill them? What do the other students think? What will Voldemort do? Find Out! Rated T because I have no clue what will happen... This is a continuation fic of Foreverskysong's Blood of Olympus

The ancient world was a harsh and unforgiving place. Alone and without family, a child has almost no hope of survival. But the life of a demigod is almost always full of surprises. Unlikely friends and dangerous enemies often change destinies. With a little luck and the grace of the gods, what could have been ordinary can quickly become extraordinary. On hold.

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?

AU in which Percy was sent to Hogwarts instead of Calypso's island, but unlike Calypso's Island Percy doesn't get a choice he has to stay. Will Percy be able to keep his world a secret? Can he keep from getting expelled? What will happen when two heroes meet? Will they be friends, or will they never learn to trust each other? Set during GoF

Percy was born of Sparta, He should of died in the battle of Thermopylae but someone saved him, Why? well maybe he will be needed in the future.

As the world turns our memories grow. Percy Jackson has had all his memories stripped from him. If the past defines you then what is he now? Will he have to start anew or will his past catch up to him and make him remember? A slightly different take on Percy losing his memories before Camp Jupiter.

"I'm Perc…" He trailed off as he went into a coughing fit, his hand automatically going up to cover his mouth. His entire body was wracked with small tremors, and Poseidon was completely horrified to see blood trickling through his fingers. The boy smiled apologetically as he pulled his hand back. "Percy," he told him sheepishly. "I'm Percy."

The great prophecy looms large as Percy nears his sixteenth birthday. Loki's final plan has not been revealed, but the final confrontation with the god of evil is inevitable. The final story in the Champion of Olympus series.

Percy is believed dead, but he is actually on Asgard. The titans have allied themselves with Loki. They wish to use the labyrinth to destroy their enemies, while they wait for Loki and Kronos to merge. The fourth story in the Champion of Olympus series

A terrible event occurs on Olympus that sends Percy and his friends on a perilous journey to save two people that are very important to our hero. Along the way the titan Lord Kronos's secret is revealed. The third story in the Champion of Olympus Series

Camp is in trouble, and only Percy can lead the quest to save it, but he has problems that could doom the quest to failure. Sequel to Champion of Olympus.

This is an alternate universe for PJO, Percy Jackson is the son of Poseidon and the hero of the great prophecy, but Percy is much more than he seems.