published books that were originally fanfics based on the pairing Regina Mills/Emma Swan from Once Upon A Time. all languages.

REQUIREMENTS: MUST be a published novel through self or traditional publishing. e-book only sales count IF they're published. fanfics on goodreads that are NOT published novels do not count.

MUST be based on a swanqueen fanfic. books by authors who've previously written swanqueen fanfic don't count UNLESS the book itself is swanqueen based.

ONLY add the first book/main book of a series. no add-on novellas either, please. this will keep the list organized. you CAN add different standalone books by the same author if they're all different stories.