User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-170.235.245.51-20130606171516/@comment-3146930-20130606202641

The gods' Greek and Roman aspects are like Split Personality Syndrome. Their personality changes depending on who is viewing them. Camp Jupiter has Bacchus and Camp Half-Blood has Dionysus for example. Each side has very little knowledge of what their other form does, as not only can gods exist in multiple places at once, but it seems that even acknowledging that side of them causes their headaches to get worse. Anyway, while each form has small flashes of memories from their other personality's, they tend to stay in one form around Greeks or Romans.