Because of Miss Bridgerton/Julia Quinn/291 pgs.

It's 18th century England, and the Bridgerton and Rokesby families have been not only neighbors, but close friends, for years. It has been expected that Sybilla "Billie" Bridgerton would eventually marry one of the Rokesby brothers. Billie, now 23 years old, is not your typical "genteel" daughter: she helps run her father's estate, wears britches when riding on the estate, and doesn't enjoy society life. The only thorn in her side is George Rokesby--five years older than Billie, and the oldest of the Rokesby brothers. The plot is rather typical, but Quinn's characters are entertaining, making for a fast, enjoyable read.