"What do you need boy robes for?" inquires Madam Malkins.
"I'm sometimes a boy," the girl explains.
"What?"
"Look—"
Okay, well, it was nice to meet her.
He'll see her at the train next week.
Next week a boy and his mother are at King's Cross, moving towards a place that doesn't exist.
So is another boy! And his mother!
Then when nobody's looking, they both walk through a wall.
This boy hugs his mother, says 'bye, and he, his owl, and his stuff all go through the wall, too.
On the other side of which, is: a train!
… Also Anthony. Anthony is there with an owl and some luggage and his mother.
"Alright! Read all the books! At least a bit of all the books anyway!"
"… I have not read a bit of all the books! I have read a bit of some of the books?"
"I read all of the Charms book and the Transfiguration book and a bit of all the other books."
"I read a few bits of the Potions books? And some of Charms, and about the introduction to Transfiguration, and a bit of the others…"
"I like reading a lot, and this was literally the most interesting thing around."
"It's good you're so enthusiastic. Now – the both of you should probably get on-board."
Anthony's mum eyes Sadde's luggage. "Do you need help with that?"
Anthony grabs his stuff and follows, then waves at his mum just as they get on.