Portals are one of the most interesting travel agents in the universe. They can get you anywhere, anytime, and anyplace. But for Percy Jackson, falling through a fandom portal was the last thing he needed. After being plucked from camp, Percy finds himself on the run through the universe without friends or a way home. All the while a darker plot begins to unfold- one that threatens to entangled the entire cosmos. Falling through time and portals, Percy is the only one who can save it from disaster. And from the looks of it, he doesn't have a say In the matter. Will he be strong enough to fight when hope seems to be lost? Will he tip the balance of fate and save everyone? Will he ever get back to camp and see Annabeth again? Or will he lose everything? Fall in deep with Percy before it's too late. "This is the BEST crossover fanfic I've ever read." -@Lady_Slash "...you are one of the best authors on Wattpad." -@TheNerdyDemigoddess "Your story is great...the only good multifandom story I could find." -@stephaieruthrybolt "I can't even begin to Describe how well written this is, the plot is simply incredible." -@AwesomeAuthorAlyssa "One of the rare moments I am practically ravenous for the next chapter..." -@Solid-Wisp "I really thought this book was innocent in the beginning...but you have made me stay up till all hours of the night." -@Diamond_Destiny "This story is ruining my life, I LOVE IT" -@NoSuchThingAs_Normal "You are a really great writer and sometimes I forget you are not Rick Riordan." -@DemeterPond "Can I just say that this book is actually better than the original pjo(Percy Jackson Series) and also HOO(Heroes of Olympus Series)... I LOVE THIS BOOK!!!" -@qzwzezrztzyzuzizozp "Thus begins one of the best Percy Jackson fics there ever has been, is, or ever will be." -@Good_Night_Lock

Alone. That was all Cosmos felt. Broken. That was Percy Jackson, slowly fading away. Betrayal. He ran away, swearing to never come back. Love? Will Cosmos-also known as Percy Jackson-get his life back? From all who he loved and cared for?

After the giant war, there was peace at Camp Half Blood. Cabins didn't fight and the Romans came to visit often. Everthing was perfect. Except for one very unhappy camper. His name was Percy Jackson, defeater of Gaea, Kronos and many, many more monsters and titans. And Percy Jackson was unhappy because of one single person, his new half-sister Skylar. And when you're unhappy you want to get away from everything, so he left.

Betrayal, pain, angst those were the feelings he felt, when the camp and chaos ask for help..what will he do Unlike any chaos story ALL RIGHTS TO RICK

Demigods at Camp Half-Blood learn that the students of Hogwarts are in trouble when the rumor arises that Voldemort isn't dead along with Gaea and Kronos. With Demigods and Wizards combined, will be enough to stop the evil? If not, everyone's life is at stake.

Percy, Annabeth, Thalia, and Nico must take a trip to Hogwarts in order to keep the golden trio safe. Will they be able to rise to the occasion to help them defeat Voldemort at his rise, or will everything fall apart?

©All rights belong to Rick Riordan and J.K. Rowling Exept the plot The giant war is over, but it had great loss. The seven, but Percy, had died. His love, his live, his breath was taken away when Annabeth died. Thalia and Nico are the only ones who understand him. New Secrets, gifts and powers are opened. A new world. The big three, Nico, Thalia and Percy, are going to a new world, to forget theirs and save them. The battle is over, Harry is overjoyed. All his friends are still living except Fred, Tonks, Remus and Sirius. Even good old Dumbledore is dead. But they are memories, good memories. The golden trio, Hermoine, Ron and Harry, return with Ginny to Hogwarts. They are going to repeat their last year. This year is full of surprises, three new students, will go too. What is their secret? They are quiet, have secrets. Their life's can't be wors then Harry's right?

**UNDER CONSTRUCTION!! YOU HAVE BEEN WARNED!!** pro·tec·tor prəˈtektər noun 1. a person or thing that protects someone or something. - After Percy Jackson gets betryed by his family, he not only goes to start his life over in some place new, but a new planet. Now, he is back on planet 3, but not where you expect him to be. His mission is simple; Protect Harry Potter. But how will the wizards react to Percy? . . . I know it's a sucky summary, but give it a try.

So this is a PJO/HP crossover. All rights go to Rick Riordan and JK Rowling. I do not own any of the characters!!!!!!! New Readers: I've started re-writing this story. Original chapters will remain available, but the plot has changed slightly so feel free to start reading at/after the Author's Note. All re-released chapters are titled with a "[v2]". Original summary: Percy's finally defeated Gaea, but the deaths that occurred along the way, and his trip to Tarturus still haunt him. In the midst of his mental struggles, Albus Dumbledore offers Percy a quest--protect Harry Potter. As Percy ventures into another world he hadn't realized existed, he learns that he has a much bigger role in the upcoming war against Voldemort than anyone could have imagined.