Blindspot By a Gentleman in Exile and a Lady in Disguise

"Written with wit and exuberance by two longtime friends and accomplished historians and set in rebellious Boston on the eve of the American Revolution, Blindspot ingeniously weaves together the stories of Scottish portrait painter and notorious libertine Stewart Jameson and Fanny Easton, a fallen woman from one of Boston's most powerful families who disguises herself as a boy to become Jameson's defiant and seductive apprentice, Francis Weston" -- from publisher's web site.