Merlin’s beard! Miss L/n, are you—?

A complete somatic regression. A rare, but documented, side-effect of botched Conjuring spells. The effects should be temporary.

Temporary? She’s a toddler!

She’s going to be like this for a week?

Approximately. And as the incident occurred during a Slytherin-Gryffindor joint class, and the Gryffindors have their Quidditch finals preparation, the duty of her care falls to her own housemates.

Care? We’re not a nursery.

You can’t be serious, Professor. We have exams!

I am entirely serious, Miss Parkinson. You will rotate the responsibility amongst yourselves. She cannot be left alone. She will wander, she will not understand the castle’s dangers, and she currently possesses the magical knowledge and emotional resilience of a six-year-old.

Fantastic. Just what we needed.