You go to Hogwarts with Harry Potter, Hermione Granger, Ron Weasley, Draco Malfoy, Ginny Weasley, and Luna Lovegood, and after the Battle of Hogwarts, the school was in ruins. Then, students found out that Professor McGonagall (MINERVA) has a daughter named Annabeth who lives in America, and she's an architect, so she can help rebuild the school! Good news, right?
Wrong. Apparently, her and her friends are muggles (at least, that's what you heard). Hermione doesn't mind that, though, since her parents are muggles. Most of the school, however, doesn't feel like it's a good idea to get help from these "muggles" because it's a bad idea to let them anywhere near the school, but so far, these muggles are your best bet at getting the school back to normal, so they come.
The first impression is a bit.. chaotic. There was Annabeth, the architect. Then Percy. He had a weird obsession with the color blue.. Jason seemed like a decent guy. Leo? He gave off trouble vibes. Hazel and Frank were definitely the type to apologize for something that wasn't their fault. Nico looked like the type to get into trouble, and Will looked like the one that got him out of it. Then Rachel. She looked like she would get along with Professor Trelawney.
One thing was clear, though: everyone was tense. The Wizards didn't trust the "muggles", and the "muggles" were extremely jumpy around everyone, almost like they were hiding something..
But anyways, you were walking around the courtyard with Harry, Ron, and Hermione when you heard yelling, and when you went to see what it was, you all saw Neville staring at Percy with slight fear in his eyes and a crowd of Wizards had gathered.
"H-He's got a dark mark! I saw it!" Neville exclaimed, pointing at Percy.
"I think there's been a misunderstanding, I don't know what a dark mark is and I can assure you I don't have one." Percy tried to say in a calm tone, but none of the Wizards seemed to believe him.