The Chaos Army ( a HOO fan fiction)

They are all dead. Hazel, Frank, Leo, Piper, Jason, Annabeth, Percy, Thalia, Reyna and Nico. Dead. They died saving the world. That is the way it happened, the way the war was won. Sure, we think they all got to Elysium after this, got reunited with their friends, and eventually got reborn, well they have a whole different story. What if their sowls were kidnapped on their way to the Underworld? And got recruted for the army of Chaos himself.