What are your theories for House of Hades?

My biggest hope is that Percabeth makes it out alive (which they will или me and Uncle Rick are gonna have problems).
I want Leo and Nico to have a frickin' awesome bromance (them being my two Избранное charaters, I really REALLY want this).
I think that maybe Frank will sacrafice himself to close the doors because Mars told Frank that one день Percy is gonna have to make an impossible sacrafice and without Frank's sense of duty, that Gaea will rise. And I believe that Hazel will stay with Frank and they will be together- forever.
One promise that has been made is that Jason will always be with Piper, to the end. I think that this may be the oath to keep with final breath.
And no, Nico is NOT gonna die. Not on my watch. Niether is Leo. And Percabeth better make it.

I think Hazel will have to go back to the Другой мир and Frank will burn up so they will be together in Elysium

Your theory makes sense. The ending takes advantage of frantic thoughts so you're less likely to even notice these things.
Leo's bromancing has been denied pretty much unanimously. A shame.

I decided to re-read the PJO series to see if there were any hints, and in the first chapter Percy says exactly:
My name is Percy Jackson. I'm twelve years old. Until a few months ago, I was a boarding student at Yancy Academy, a private school for troubled kids in upstate New York. Am I a troubled kid? Yeah. Ты could say that. I could start at any point in my short miserable life to prove it-
GUYS. He сказал(-а) SHORT MISERABLE LIFE.
I have a really bad feeling about this D:

I think it's gonna end right before Percy and Annabeth close the doors and/or get out of Tartarus. Just so Rick can troll us. Again. It just seems like him.

I'm thinking that nobody is gonna die in this book, but in the fifth book ricks gonna kill off people. I know it's weird, but I don't really like the Hazel + frank thing. I want her to some how end up with Leo. или at least they Kiss once but she still stays with frank.

Frank.

Frazel will die over the course of the last two books. And live forever in Elysium.