oh wow, did it get good, did you enjoy it?
The Devil comes to Moscow (not a spoiler).
It's written as a fantasy, with clear satirical notes on the state of play back then in Bulgakov's homeland (Stalin's Soviet Union being atheist).
Like a darker sharper Animal Farm, and also with much more humour. There's tons of great dialogue, a fantastic 'magic show' scene, and a beautiful passage around the middle, involving Margarita (you'll know which bit when you get to it).
A relatively easy read, 300-400 pages. And a must, considering what you've already read.
I can't remember which translation i read, it's sometimes useful to compare reviews as they can be quite different, especially from Russian. For example i've twice-read Zamyatin's We...but only enjoyed one (the other being too dry).