So a comment another person made got me to thinking. The first Great Prophecy is about a half-blood of the Big Three (Percy), see the world in endless sleep (all the humans were asleep), and how a cursed blade would kill the hero (Annabeth's knife was given to Luke so he could kill himself). Ok, now stay with me. During the Lost Hero when Rachel is telling everyone the new Great Prophecy again, Jason knows about it but in Latin, not Greek. This makes sense because the prophecy is about Greek and Roman demigods working together so it only makes sense that the two camps would have the same prophecy (and most likely each camp has their own Oracle). So is it possible that the Roman camp had their own Great Prophecy about Jason storming Mount Orthrys and defeating Krios?