Carteret (Confirmed Bachelors #3)
Jenny Hambly

Confident, frank, and used to managing her own affairs, Miss Cassandra Fenton does not like the role of damsel in distress. Laurence seems determined to help her out of her immediate difficulties, however. His chivalry reminds her of all the reasons she is so unsuited to marriage.
An unlikely friendship is forged, but will it survive the pressures of potential abductors, smugglers and a suspected murderer?