Eli's P.O.V.

"Th-That's impossible." Annabeth said and somehow turning paler.

"What's impossible?" I asked. If something was impossible and it involved Grey, then I wanted to know.

"Grey, I know who your dad is."

"Who?" she asked. Now we all wanted to know.

"Will, is Nico alright?"

"Yea. Why?"

"Because he has a new sister. Grey come with me, we need to go tell Chiron." Then Annabeth almost dragged Grey out of the room.

"Will, who's her dad?" I asked.

"Nico do you want to tell them?"

"Sure. Her dad is Hades, Lord of the Underworld. She's my half sister."

"Why did Annabeth say that's impossible."

"Because Hades, Poseidon, and Zeus made an oath on the river Styx not to have any more kids."

"Then how?" Alaska asked, pointing to him.

"Because I was in the Lotus Hotel for a good 70 years give or take a few. Poseidon and Zeus have broken this oath. I want to take a nap so you guys can g see what their going to do about it."

"I'm not leaving Zac's side." Haley said.

"Fine but stay quiet." Nico rolled over. Everyone else followed Clarisse to the Big House.