User blog comment:Gingergreeney/Idea/@comment-2228081-20120129161443/@comment-3146930-20120131220800

Think about it from a time-line point of view. A Camp Half-Blood has always existed, meaning there was a Camp Half-Blood even when the Roman's adopted the Greek gods. However, because the Romans came after the Greeks, the people of Camp Jupiter seem to know that the gods could have other forms (I mean Frank just joined camp not to long ago and seems to know this). On the other hand, because the gods started as Greek, the Greek demigods would have no reason to think that the gods could become Roman