This is going to be Mark of athena but in this percy never regained his memory and doesnt know who annabeth is. He does know he is greek though. When the greeks arrive and they greet him he doesnt know what they are talking about and some will be heart broken.

I know im not giving you much to start on but this is it

Also rules:
RULES MAKE ME ANGRY SO DO WHATEVER!

Disclaimer:
O yea RR owns all of this so yea i dont own it

Characters: People from HoO and PJO and maybe others