Board Thread:General Discussion/@comment-1515612-20140124040605/@comment-5019333-20140305021722

@ClaireValdeztheAWESOME:

Wasn't the sand dollar used as a trade to the East and West River gods? For half of the sand dollar each, the river gods stopped part of Kronos' army from using the river route.

Pretty sure this is correct, so I'm going to go ahead and ask a question.

What was Geras' (god of old age) reason for why he should be the one who gets to be in the "photograph" with Nyx/Night that Annabeth "takes"?