High-Class Adventure?

'sup /book/.

I'm looking for some good adventure novels.  At least, I guess so.  I had an urge to read something with Kings and Dukes, duels, feasts and subterfuge.  I read Once and Future King, figuring Arthurian legend might do it - but that was too much fantasy.  So I read Count of Monte Cristo, and that was spot on!  Riches, Nobility, duels, backstabbing, even going off to fight a war like it was a summer vacation.

So how about it, /book/?  What should I be looking for that would fit this kind of theme?

There seems to be a distinct lack of good modern adventure novels aimed at adults. Which is odd considering a lot of us grew up watching great adventure films, you'd think that it would translate into lots of adventure novels too.

However nearly all adventure novels seem to be aimed at kids or young teens, which may produce interesting enough reads but means they are unfortunately a bit light weight. Sure, if you want to go into fantasy or spy genres you'll find a few half decent adult adventures but why the hell are modern equivelents of the classic adventures like most of what >>3 mentions so few on the ground? (thinking about it as well most of those were aimed at the teen or child market at the time too).