[2] Prothero-Lewis wrote twenty-one novels, mostly romances set in Wales, between 1890 and 1928.

[3] She also wrote short stories and poems for periodicals including The Girl's Own Paper.

[4] Three of her novels were adapted into silent films: As God Made Her (1920), The Silver Bridge (1920),[5] and Love and the Whirlwind (1922).

"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.

[6] Prothero-Lewis married solicitor James Jacob George Pugh in 1895, and the couple lived in Twickenham.