Rider of Night's Dragon (Eragon and Percy Jackson fantasy)

Sorry guys (or girls) because this is my first book and I won't quite have that same flair as Christopher Paolini or Rick Riordan but bear with me please. (P.S. All rights to Chris and Rick for creating such awesome characters![Although I will have a few OC's of my own, wink wink!])

In the world of Percy Jackson, things have never looked bleaker. There is a new enemy that even the gods have never heard of. His name is Galbatorix and he has deposed of the gods and thrown them into Tartarus. The tyrant now claims he has come from the dead and there is no one to stop him. Until Percy finds an egg. It suddenly hatches, and out comes a dragon! As soon as it hatches, though, a strange figure comes from the Sea of Monsters with his dragon. He claims his name is Eragon and he is the only one that can defeat this powerful, mad "king of the gods". And Galbatorix is indeed frightened by this newcomer. But Eragon does not attack yet. Instead he goes to Camp Half Blood for help. But to his surprise, he discovers Percy and his dragon whom Percy names Rävgòre. He then begins to train Percy with the help of his own dragon, Saphira. But when he is done, will they be able to kill Galbatorix again? Who knows?

(P.S. If u haven't read Percy j or eragon this might be a little confusing)

(P.P.S. I will try not to make spelling errors. It drives me INSANE when that happens. If I do, PLEEEEAAAASE try not to be too harsh.[ Cookies!!!!!!!! (::)(::)(::) ])

(P.P.P.S. Not completed and won't be, my mom is touchy about this stuff. SOOOOOOOOOOOOOOOOOO sorry)