Best wishes that everyone who's picked up unwanted stuff this season gets well soon.
Free from the author via KDP Select @
Amazon:
The Border Bride by Elizabeth English, 1st in her The Borderlands series of f/m Scottish historical romances, originally out from Jove in 2001. The blurb for this says it was a RITA Award-winner.
No one can remember a time when the Darnleys and Kirallens were not at each other's throats. The marriage of Maude Darnley to Jemmy Kirallen promises to end an age-old conflict—but Darnley has no intention of keeping his sworn word. Instead, he blackmails his baseborn daughter, Alyson, forcing her to masquerade as Maude while he prepares for a devastating surprise attack. Alyson is determined to survive and rescue her young brother from Darnley's clutches, but she never counted on falling in love. Now Alyson is faced with a terrible choice: Reveal the truth, and her brother's life is forfeit—stay silent, and condemn Jemmy and his clan to certain death.