I don't give five stars often but this was SO good! Excellent, best book of the year! I can't wait to read more by her but for now I've had my little fill of WWII. I loved it. The stuff about the mental institution caused me anger that people could be committed to such places, that such a thing as lobotomies existed. It was just a fascinating account of British code breakers with a lot of great romance and spy intrigue thrown in.