They perform some more magic tests and run out of mana and recover mana and perform more tests and a second sleepover could be fun but it's decided that people can do coordinated tests in their own places and there is not actually a need for them to all be in the same place. The Maxwells' driver takes Jess home (and Maya, too, if she prefers that to staying with the Maxwells but they assure her she's welcome to stay there), then takes Sadde, Theo, and Tyler to the Farron residence, where Sadde prefers to be dropped—he'll go to his place by public transportation, he'd like to talk to the—twins?—yes, thank you, it was a pleasure meeting you.
"The Twin makes magic copies of things, making them so they can't be duplicated. I'm a copy of Theo, I can't be duplicated. I also have magic other than not being duplicable. Can you do similarly with copies of other objects, give them magic other than that?"
"… Maybe we should look into dumping magic on nonmagical people. Sometime."
"Sorcery might be able to put a lot of magic through someone. Wouldn't necessarily take but could work?"
"Anyway," says Tyler. "I'm not sure if I'm the only one to care about this but you know you have exams shortly, don't you."
"I'm sure you'll do fine," says Tyler. "Everyone always says how easy your GCSEs are and how two-thirds of people get lower than a B in English, same for Maths and – gosh actually you know only about half of people get five A-stars to Cs including English and Maths."
Pause. "Let that just sink in for a minute. Half of people don't get passing grades in five subjects including English and Maths, the core ones, and English and English Literature count separately."
"Yes I know that thank you and – how do you even know those statistics?"
"– I think I'll do fine in French and German and Maths but that's later on and the sciences probably too but I don't know about English and I guess probably RE will be okay but I– am not sure."