"The Big Lie" by Julie Mayhew

Blurb:

A shocking story of rebellion and revelation set in a contemporary Nazi England.

Jessika Keller is a good girl: she obeys her father, does her best to impress Herr Fisher at the Bund Deutscher Mädel meetings and is set to be a world champion ice skater. Her neighbour Clementine is not so submissive. Outspoken and radical, Clem is delectably dangerous and rebellious. And the regime has noticed. Jess cannot keep both her perfect life and her dearest friend. But which can she live without?

I inhaled this yesterday afternoon, and while I gave it four stars on GoodReads, I'm actually still trying to decide how I feel about it.

( Spoilers: This alternate history where the Nazis won is kind of a downer! Also, I'm gonna give away ALL the plot twists, because why not? )