User blog comment:Hermione Chase/"The Blood of Olympus" Expectations/@comment-5855644-20131015073553/@comment-24056001-20131015235330

I'm pretty sure that an oath to keep with a final breath is meaning that Leo will come back to get Calypso off the island. in HoH Leo clearly states that he swore on the river styx that he would come back for her.

thats just my opinion!

also i think that this is what it will end up like:

percy+annabeth=cj

Leo+Calypso+?

Jason+Piper=chb

Reyna+Nico=cj

Hazel+?=chb

(frank will die!)