Percy Jackson in a world Full of Zombies

The zombies

Sorry this is a couple years after so anyway so people got married and other things.  This will follow Percy through the story.

Percy's POV

I was practicing in the arena with Annabeth when we heard a scream.  As we ran to see what was happening we thought it was a monster attack as we ran I saw people I knew biting people I knew from the movie I watched they were zombies and I could see that they were clearly dead.  So I grabbed Annabeth's hand and said they are zombies we need to leave before we are overrun.  As I ran I saw the border was about to break to many mortal zombies were pounding on the barrier I thought as fast could trying to come up. As I thought I saw the Pegasus stables we ran there we encounter some zombies on the way I saw so many people I once knew as a zombie I knew that the gods were slowly fading after seeing that I knew.  As I thought I was brought back by a scream Annabeth had been hit in the head with Thalia's tree the barrier was stretching.  I turned back and saw them walking to Annabeth who was knocked I pulled out riptide and said you take one more step you will die.  They all looked at me I saw some camper run from Zeus's cabin.  It was Jason, Piper, Nico, and Thalia.  I yelled to them they saw me and ran to help.  I spun around and said you are so dead turned my watch into a shield and charged.  Never giving a inch running my sword through them all yelling you will die all of you I don't care if you undead. (I know that it can't hurt mortals but I will explain later what happened)  I picked up Annabeth and slung her over my shoulder and ran to the Pegasus stables there I saw my friends.  I said we need to leave.  Piper said thanks captain obvious.  I know that as said that I saddled up blackjack and said we need help any chance your family can help you get all the donuts you want.  Ace walked over and said count me in.  So I saddled up Ace and slung Annabeth on the saddle.  I saw many Pegasus say they would join us.  As we saddled up and flew off into the distance with no plan...