User blog comment:Athena jackson/The Seven Half-bloods/@comment-112.209.239.138-20120421094157

I think it's Annabeth. Considering that the next book is about Athena and well, Rick has been focusing on a specific child of Athena which is Annabeth so I think there is something special with Annabeth that probably hasnt been said yet. But I have a strong feeling it's Annabeth.