User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-5929284-20130702143952/@comment-7153535-20130702151006

Maybe the original Jason's past will somewhat reflect Jason Grace's future, but I don't think so I think the oath will involve either all the 7 or just Percy and someone else. And by the way the original Jason broke his oath to love Medea not Medusa.