Okay,okay,okay,so everyone knows the new prophecy ,right??

"Seven Half-bloods Shall Answer The Call.
To Storm or Fire the world must fall,
An oath to keep with a final breath,
And foes bear arms to the Doors of Death"

My Theories :

The First Line: Seven Half-bloods Shall Answer The Call.

My List of who i think will be the seven:
The Greeks:
Percy Jackson
Leo Valdez
Piper McLean
-Possibly Annabeth

The Romans:
Jason Grace
Frank
Hazel

The Second Line:To Storm or Fire the world must fall,

Well its obvious That Jason is storm,although it could be Thalia,Percy,or another child of Poseidon..
And that Leo is Fire.But Leo thinks it means that Storm or Fire will DESTROY the World.
But i think it means :"To Storm or Fire-The FATE of the World must fall.meaning that it will all come Down to them or something.they will have to make some huge decision or do something big to save the world.but if they fail-we all die.

The Third Line:An oath to keep with a final breath
someone dies??plausible.but you never know in these books.it might mean something different entirely .it probably does.i think it has something to do with Leo.
and his mother.

Fourth Line:And Foes bear arms to the Doors of Death.
meaning the greeks and romans go to greece to confront Gaea ,wether its as friends or not.
What does the Doors of Death mean?
it means the doors of death are the main gateway between the worlds,and Geae is controling them from Gaea's Base Of Operations.
Were is Gaea's resting place and HQ??deep in the Earth,duh.
it will open up to let all the armys of darkness out at greece.
Gaea's HQ is in TARTARUS!!its so obvious .The Spirit of Tarterus is the father of the giants,and is the deep abyss in the earth,were she sleeps.Khoine is there now that she is a godly fugitive.