This is after the BLOOD OF OLYMPUS. It may not comply to the book, but I hope it makes sense.
The first time I met him he was only a boy, and then I left him. I left Percy and his mother alone to the dangers of the mortal world. That is a fault I will never forgive myself for.
I am Poseidon, god of the sea, earthquakes, storms, and horses.
Even after the pact of the Big Three kids birth was made, my idiot dolt brother still ran off and had a kid. I mean, I did too, but at least I got a girl that had good fame and stuff, not a woman who no one in the world heck with it knew. And he even adopted a peanut butter Cyclops. Ha-ha, now you can talk to my brother about stupidity.
Behold Zeus, god of the gods, slayer of Kronos, the Titan lord, god of the sky, lightning, thunder, law, order, and justice.
Both my brothers have defiled the Big Three kids compromise. I have kept Nico and Bianca safe after their mothers death...and now that Percy Jackson has gotten my daughter killed I will never forgive him. And got my son to get attached to him also.
Hades, god of the Underworld, riches, and the dead.
"Hey, Percy. What's up?"
"Oh, hey, Annabeth. You see, Tyson or my Dad wrote me a note that Kronos is rising for the third time. Apparently I haven't killed him enough times. Or he hasn't died enough times," I said. "You see, Annabeth, maybe when Luke killed Kronos the essence of Kronos escaped or something. And how Rachel told us a third Big Prophecy thing."
"Yes. The first one was 'A half-blood of the eldest gods, shall reach sixteen against all odds, and see the world in endless sleep, and hero's soul cursed blade shall reap, a single choice shall end his days, Olympus to preserve or raze.' The second one was 'Seven half-bloods shall answer the call, to storm or fire the world must fall, and oath to keep with a final breath, and foes bear arms to the Doors of Death.' And the most recent one is..."
"'When the world fell to the Titan lord, no one knew who wielded the reaping sword. To whose hand it went to became the savior of Olympus, yet the rage of the sword killed many in the heat of betrayal.' Any ideas?"
This one was way more easier than the others. The sword has got to be Riptide, because Hercules betrayed Zoë Nightshade. But Hercules was after Kronos, right? And when he came up for the second time he didn't get the world."
"What happens if there's another betrayed sword that we don't know of? That the gods had?"