This is one of Georgette Heyer's unusual novels in that it took place in Georgian period about 40 years before the Regency era when most of her novels took place.  The plot is focused around a marriage of convenience between Horatia, a 17-year-old girl (with a stammer) who is constantly getting into trouble, and the 32-year-old earl of Rule.  The premise was interesting enough as at the very beginning it was clear that Horatia was rather guileless and said what was on her mind, while Lord Rule was a rather laconic man who clearly found her quite amusing.