User blog comment:SayuriDarling/Full first chapter of The Mark of Athena/@comment-117.193.58.82-20120603043944/@comment-117.193.58.205-20120604021000

In th plot it is said that Annabeth holds the key to maintain peace between the left behind demigods. How do you expect her to do that when she is on the ArgoII? Besides Annabeth can stay behind and rally forces to take the Doors of Death once the seven find it.

Athena gave that coin/blesing or whatever - not to make Annabeth more powerful but to help her avege Athena (whatever that means). I don't think Annabeth is the seventh. Maybe she is more important than the seven in some other way - but definitely not the seventh.