Together: The Next Prophecy

Percy Jackson never thought he would have to go to any other quests after the victory over Gaea. obviously he was wrong. Now the gods need his and the others help to unite forces with different people who believe in different things. They need to find Clary Fairchild, Micheal Vey, Four, Katniss, and Harry Potter. They will need to defeat the worlds greatest evil of mankind. All the evil combined. The demons, mogadorians, wizards and all have joined forces to defeat good but they will not let that happen. will they be able to defeat them once more or will they fail and let them get world domination?
Read and find out.