Background: We start with the seven on the train to Hogwarts. They have come here to see if things can possibly go smoother than Greek and Roman War. They have come to get help from this "newer race" and they can then have more experience to beat the Romans.
"This is gonna be AWESOME!" Shrieked Annabeth.
"Jesus FLIPPING Christ Annabeth! Keep it down!" Percy yelled. "Anyway, what are you guys hoping to do at Hogwarts?"
The conversation and yelling continued, but it was all unbearable to Hazel. She stared out the window of the train, wondering what magic she could learn.
"Freeze spells, maybe even apparition," Hazel mumbled to herself. Usually, when Hazel mumbled, she was mad. Now though, she was stressed.
"What if I'm separated from everyone else?" Hazel started to tear up now. What if she was to be separated from Frank?!
"Hey. Hazel. Hazel. HAZEL." Frank raised his voice. "You okay in there?" Hazel sniffed. She inhaled, and exhaled, ignoring Frank. 'Whatever my destiny is, I am bound to accept it.'
"All passengers, please be ready for departure onto Hogwarts, wizards game school of magic. Also, why are there old ladies cutting string on the tracks?" The conductor said it soooooo 'clearly' that no one knew what he said. Except Frank.
"Guys." He started.
"Oh shut up. Stop blabbering about fake news."
"You're one to talk Leo."
"Hey! Actually, given all the things I've said, that's probably fair. But I don't know for sure, so I'm going to flame you."
"Flame the furies first!" They heard a bloodcurdling scream. Scarier than anything before.
"That's our cue." Percy said. "Let's fight some furies."
"Wait." Hazel said. "Remember at the beginning, they said this was a self driven train? This is obviously Hades trying to get us to stop going."
"Screw you dad! You never let me do anything fun!" Nico yelled. The furies withdrew from their baiting position and the train resumed. Why that worked? Nobody knows. But we do know the seven are on their journey to Hogwarts.