What happens when the two different worlds surprisingly collide. Alliances and friendships are formed or will hatred ensure the fall of both worlds while fate runs it's course.

This is a Percy Jackson/Magnus Chase/39 clues crossover. Percy has a sister and a family of his own. He now a godling(meaning in story) too! He has to leave his mother's side family to ensure their safety but what will happen when he gets into trouble? will his family be able to save him and Annabeth? Will they succeed in defeating their enemies? read the story to find out.Have fun

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This is an adventure like no other for Percy and the 7. They meet a lot of new people, and demigods at that! This is an Epic adventure for them all! It is several small quests/adventures leading up to the Big War. Kronos and Gaea are back, WITH ALLIES, INCLUDING THE ONE, OPAL KOBOI, AND SCORPIA, WHICH IT'S HIGH RANKING OFFICERS INCLUDE THE VESPERS, PLUS ISABEL KABRA, WHO OWNS ITEX!

Crossover series : Percy is unknowingly given the Lucian serum by Vikram Kabra. After Vikram dies, no one knows about Percy being given the serum. Percy because leader of the Lucians along with lan Kabra.But what happens when Annabeth is an Ekaterina ...

This is my first story so plz read. The Cahill's go on a reunion and read the Percy Jackson and the Olympians the lightning thief. But theirs a twist... PJO characters are replaced with the Cahill's. Amian Hamead Teagan Nedison

We have another reunion on our hands, and this time there are surprise guests?

The title explains it all: it is a court case with Annabeth, Piper, Amy, and Laura as the defendants in a 1st degree murder and grand theft auto case. And, wouldn't you know? Their defense counselor is non other than Ben Matlock.

Amy, Percy, Jason, and Hazel head to New Orleans to find the hostages and maybe bring down the Vespers while they're at it. They find and enter the stronghold easily enough, but can they manage to navigate and escape it too? Their quest will force them to face their fears, test their limits, and find out if any of the hostages are still alive by the end of it.

Annabeth and Piper are kidnapped, and Percy and Jason have no idea what to do. The Flock is attacked and Angel is captured. Amy Cahill is kidnapped, along with Maggie Rose and Micheal Goldberg. Angel manages to escape and is able to lead to the rescue of those who were kidnapped, but also eventually leads to the downfall of the Vespers and Gary Soneji.

Amy isn't a demigod and Percy isn't a Cahill,but can Amy see through the mist?

When the Cahills and demigods learn their a bit of both, they must work together to stop Diachronikó Vesper, Damien Vesper III's long lost brother, descendant of Kronos, from opening the ate behind the Gideon Lock. Can the demigods and Cahills stop Diachronikó, or will all be lost? First in the Olympus Stand series.

This is my first fan fic- no flames please. Follows The Medusa Plot, but has some changes. Future AmyxJason.

Third to "A Pegasus Ride" and "A Dog Ride" one-shots. In this one-shot, Dan (with guest star Saladin!) come across a very interesting new beast. Warning: lots of random references, horrible taunts, and bad plans. Wait, how come only Percy and Nico get a ride?

Amy goes back to school. What will happen when she meets her sneaky relatives? What will happen once she meets Annabeth and Percy? A powerful demigod is sure to attract monsters. Takes place after TLO and Into the Gauntlet. Notice: This fan fiction is undergoing major renovations. New readers are welcome to read. For the old ones, please re-read.

Master Bolt and Master Serum? Think about it. As Amy and Dan near closer to the only thing powerful enough to defeat the gods, Percy and Annabeth are sent to destroy all the clues in their wake. But as they reach the serum, they have orders to kill them. Yet sometimes in Life, you can't decifer whats wrong, and whats right.*rewritten* Origanally Impossible Quest NOT AmyxPercy

Percy Jackson is actually Percy Cahill, He is Amy and Dan's half brother .Watch the three siblings as they struggle to complete Vesper 1's demands. Suspicion arises and secrets will be revealed. Percy is still a ad the A/N guys please READ AND tnx

This is going to be a PJO & HOO, 39 Clues, The Secrets of the Immortal Nicholas Flamel, Skuldeggery Pleasant crossover. I know a lot of people, but a crowd is fun isn't it? Anyway, so basically, I kidnap some charecters and the ones as EE or KM are actually my classmates that want to be famous. As if :D. Also DOK is my sister, she wanted to be famous too XD. Rated T to be safe

If you haven't read 39 Clues then skip the intro if you just want the argument... This story is basically true...I had an argument with someone over the internet about Piper... And had trouble not throwing my computer because I got angry...

I'm off to a funeral" Percy said, "then I guess we're off to a funeral!" Hermes laughed. THIS STORY HAS BEEN ADOPTED BY CANDYLAND7

Mysteries galore. Plus a great story.

Amy, Dan and Nellie are running away from a manager after Dan stole some skittles, they bump into Percy, Annabeth and Grover and soon discover themselves in a sticky situation

Jordan is new to the whole "Demigod" stuff. Can he grasp hold of enough of it to go on a quest and save his new friends?

Annabeth has a friend who needs her and Percy's help. What's a girl to do? Why help of course, I mean it is her sister!

I DO NOT OWN ANYTHING EXCEPT FOR THE PLOT. Everyone thought Amy Cahill died in the Gauntlet in order to save Ian Kabra. But the truth is Amy is very much alive. Her hidden past is catching up with her present life. IanxAMy, a bit of AnnabethxPercy