I suppose I would call them (in fact, I have called them, when forced) historical fiction. That is, a lot of research goes into each one and a prime concern is making the era come to life. Beyond that, I hope to keep the reader turning the pages, interested in the characters and the plot. There is a lot of plot; some of it has to do with a love story.   I would not call them erotica simply because I don’t write gratuitous sex scenes.