jonn reviewed Vienna Spies by Alex Gerlis
Since I cried in the end of the book, I can't rate it lower than 4 stars
5 stars
That said, book 1 is very well-written too, but there's a problem which is that it also has the same overarching theme: lovers separated by war trying to unite. The details, the writing and the historical accuracy are amazing and it's clear that the author has an admirable appreciation for the history.