I promised I'd do a little research and explain what made them blue. We knew it was Blue Curacoa. K was correct that it is pronounced kyur-ə-ˌsō. It's basically orange liquor with blue coloring added.
We all agreed that it was sweeter than our pitcher of regular old green margaritas. I have a couple of theories on that, just like we had a couple of theories on the book. It could be that because they need to add enough of the blue curacoa to make the drink visibly blue, they added more of the sweeter blue curacoa and less of the tart tequila. Or, it could be that looking at something blue plays a trick on your mind and makes you think that it is sweet. Either way, somebody sold their soul to the devil. Sorry, couldn't resist a little book club inside joke.
Although I hated the artificial color of the Hurricane, for some reason I like the concept of blue curacoa making drinks blue. I'm going to track down a couple more blue drinks and tell you about them in future posts. Until then, what do you think of blue drinks?