Satan brought Imperium by Robert Harris to me for Christmas. I read it and liked, it was untypical for a historical novel, as it wasn't just a run through famous events, but rather like ordinary novel that just happened to be about Cicero.
I'm going to read other parts too, but was wondering about Harris' other works. The Germany-thing sounds good, and I'm going to read it (please don't spoil), but what about Enigma and Ghost Writer? Are they good fiction even if you're not interested about the topics?
As it happens I just started Lustrum, the sequel to Imperium, this morning. Seems like more of the same, which is a good thing.
I've read all the Harris novels you mention and one or two more. They seem to me uniformly excellent. Fatherland is extremely good - I know that "what if Hitler had won" is a dreadfully overused idea, but I can't imagine it being done better than this. Aside from anything else, it doesn't sensationalise. (It's not giving much away to say that Hitler himself doesn't actually appear, for example.) It's the kind of alt history that's really about the real world, which is why it works so well. Enigma is good too, though I'd say not quite as interesting, and The Ghost is quite fun though I think rather slight compared to his other novels - and the agenda is a bit too obvious with that one (i.e. a fictionalising of Tony Blair - which is also part of the agenda with the Cicero novels too, but in a more subtle way). But it's still worth a read. I believe he wrote it as a bit of light relief while working on the Cicero series. I'm not interested in any of the settings or subject areas of these books and I still liked them all, so I wouldn't worry too much about that. Pompeii is a very good book too. In general Harris seems to choose his subjects very judiciously and treat them with great skill.