User blog comment:KrspaceT/The Seventh Demigod; Something unexpected?/@comment-110.32.249.166-20110713233334

Well, we know there's Leo, Jason and Piper, for sure. And the seven are going on the flying ship to Greece when it's finished. But at the end we know that Annabeth is in the prophecy, because at the end se asked if she could join them on the ship and they agreed.And, it's been confirmed by Rick Riordan that the characters in the Son of Neptune are Percy, Frank and Hazel. So, there are your seven.