Prothero-Lewis wrote twenty-one novels, mostly romances set in Wales, between 1890 and 1928. She also wrote short stories and poems for periodicals including ''
The Girl's Own Paper. Three of her novels were adapted into silent films: As God Made Her (1920), The Silver Bridge
(1920), and Love and the Whirlwind'' (1922). Prothero-Lewis was considered a reliable and talented novelist in her genre. "Sometimes there are sentences, bits of description, in the romances of the country-side, which make one think that, had she been less normal, less conventional, the authoress might have written something in the vein of
Wuthering Heights," wrote
Mary Webb in
The Bookman in 1925, pointing to some "macabre touches" and "two dark, wild brothers" in
The Hills Beyond. ==Publications==