Her Scottish Scoundrel by Sophie Barnes

Destined for the hangman’s noose, love is a dream he cannot afford…

When Blayne MacNeil agrees to be Miss Charlotte Russell’s bodyguard, he doesn’t expect her to expand the job description to fake fiancé. After twenty years in hiding, announcing his engagement to a viscount’s daughter could prove fatal. For if anyone were to recognize him, he’d be charged with murder.
Determined to keep her independence in order to safeguard her writing career, Charlotte must avoid marriage. After all, no respectable gentleman would ever permit his wife to pen outrageous adventure novels. But when her most recent manuscript disappears, the roguish Scotsman posing as her fiancé becomes her closest ally – and the greatest threat to her freedom.