User blog comment:PercyJacksonsBiggestFan/Mark of Athena's Point of views/@comment-4093491-20111128154233/@comment-3312788-20111220095924

That's a very interesting thought. Never thought about it that way, but I think the only way that would work was either if Nico and Reyna went along on the trip. Or if something goes down at Camp Half-Blood and Camp Jupiter and is a significant plot point.