Hermione returns alone to finish her last year at Hogwarts and nothing seems to be going as planned. With Ron in London and Hermione back in school, it seems like they make less and less sense together every day. Hermione takes comfort in the unexpected friendship of Luna Lovegood who shows her that maybe the life she had planned isn't the one that she wants after all.

On one cold December evening, Christmas break has left the castle deserted and McGonagall wanders the library in search of a good book. When she unexpectedly runs into Hooch between the stacks, she finds something very different to keep her warm.