Inventing your own country is a lot of fun. If you like hunky Mediterranean men, you can make sure it’s densely populated with them. Naturally all your favorite foods feature prominently in local cuisine. And if you’d like to take a sensuous mental dip in the warm waters lapping against the crystal sands of your imaginary locale—who’s to stop you? I had all this fun and more in creating the nation of Caspia for my new book Prince of Midtown. It’s the third book in Silhouette Desire’s “Park Avenue Scandals.” The editors at Silhouette chose a different Desire author for each book in the series and gave us the plot and characters to make our own. In my case they also gave me a country. I was handed the name Caspia and informed that it was in Europe and “like Venice.” It came complete with handsome prince Sebastian Stone, a spirited playboy in desperate need of reform by the love of a good woman: namely his down-to-earth American assistant Tessa Banks. I’m the kind of writer who likes to know ALL the details, even if they don’t actually end up in the book, so first I had to figure out…