Harry Potter defeated Voldemort. The Avengers stopped the Alien invasion. Emma saved Storybrooke. Percy Jackson...well he did everything else.
Suddenly in the middle of defending camp the most powerful demigods are swept away on a crazy ride dropping them off in some least expected places. As the separated search for each other and whoever teleported them away, time is ticking down for their camp. More clues unraveled, friendships are made and broken, Love take a wicked turn, and suddenly these very desperate demigods find themselves in a bigger mess than they could possibly have thought.
This is based after BoO but I haven't read it yet. So the plot line differs right there.
I DO NOT OWN ANY OF THESE CHARACTERS BUT THE PLOT WAS MY CREATION. ALL RIGHTS PRETTY MUCH GO TO RICK RIORDON, JK ROWLING, MARVEL, AND THE CREATORS OF ONCE UPON A TIME.