Irish Thoroughbred, the debut novel by American author Nora Roberts (pictured), was first published in January 1981 as a category romance. Like other category romances, it was less than 200 pages and was intended to be on sale for only one month. It proved so popular that it was repackaged as a stand-alone romance and reprinted multiple times. Roberts drew on her Irish heritage to create an Irish heroine, Adelia "Dee" Cunnane. In the novel, Dee moves to the United States, where her sick uncle arranges for her to marry his employer, wealthy American horsebreeder Travis Grant. Although the early part of their relationship is marked by frequent arguments, by the end of the story Travis and Dee reconcile. According to one critic, the couple's transformation from adversaries to a loving married couple is one of many formulaic elements in the book. Although the protagonists adhered to many stereotypes common to 1980s romance novels, Roberts's heroine is more independent and feisty than most others of the time. Roberts wrote two sequels, Irish Rebel and Irish Rose.