I am currently reading my way through a long list of science fiction and fantasy titles. (http://www.npr.org/2011/08/07/138938145/science-fiction-and-fantasy-finalists if you are interested in the list).
We've agreed that a number of choices possible for our Summer of Spies will probably require copious gin consumption. (Agatha Christie's spy novels, Ian Fleming in general).
Now, I'm very fond of my gin-and-tonic, but summer also seems to be an excellent time to experiment with other drinks. Here is the web page that I found with drinks that seem to be within my capacity to produce:
Cheers, fellow espionage enthusiasts!