"How do wizards build houses, I bet not with hammers."

"What's a hammer?"

"You wouldn't be having fun with me asking that, now would you?"

"I promise you I sincerely haven't the faintest idea."

Giggle. "It's a thing for pounding nails into wood. Do you have nails -"

"I don't really know. I don't think so - you can just make two pieces of wood into a seamless one -"

"Wow. I love magic, have I mentioned today -"

"Yes, when we were opening presents." Kiss. 

Kiss! "And I love you!"

"I love you so much and I am so delighted I met you and I love our children and we'll have such a lovely house - such a lovely life -"

Giggly kisses.

And there is the annual obligatory flying snowball fight, for which Minor can even be dragged from his dictionary-in-progress, and then the whole family dries off around the fireplace and takes turn making the flames into abstract art. 

"Do a cloud that looks like a bird," challenges Rebecca.

"Do triangle!" says Catherine, who is learning shapes.

Bird! Flying bird. Triangle. Triangle that bends and twists in three dimensions.

Catherine is delighted.

And eventually holidays end and Hogwarts attendees return to school.

Miranda sets up a time to quiz Karen on some things for NEWTs but then hits a rough patch in an essay she wants to have perfect and asks Stoller if she'll go do it instead - "you don't have to know the material, just read off the questions from her notes in a random order, it helps her if there's a person -"

"Yeah, sure!" She goes off to find Karen.

Empty classroom near the library. Pacing.

"Hey! Swan's worried about her essay so I'm supposed to help you - are you okay -"

"I'm fine, just getting in my exam worrying in advance. Thank you - review notes're over there -"

She'll read it off to her! 

Karen gets all the questions right, though not without considerable brow-furrowing and muttering in a few places.

"Excited to graduate?"

"Little frightening, to be honest, I like the structure."