User blog comment:Hermione Chase/"The Blood of Olympus" Expectations/@comment-24869679-20140427021646

I really think that Leo is the hero that the prophecy is talking about in the 3rd line. The prophecy states; " An oath to keep with a final breath" it doesn't say that anyone will die it just says that they will stop breathing. I think that Leo will become immortal so he wont need to breathe, that way he will be able to stay with Calypso for ever. When Rick was fist introducing Leo as a character, he mentioned that Hera put him in a fireplace. Demeter once tried to make a child immortal by placing him in a fireplace, but the ritual was interrupted by the mother. Maybe as a reward for his hard work in the upcoming battle, he will be awarded immorality, and he will take it.