
Updated September 2026
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All free classicsAbout Mary Roberts Rinehart
Mary Roberts Rinehart was an American writer, often called the American Agatha Christie. Rinehart published her first mystery novel, The Circular Staircase, in 1908, which introduced the "had I but known" narrative style. Rinehart is also considered the earliest known source of the phrase "the butler did it", in her novel The Door (1930), although the exact phrase does not appear in her work and the plot device had been used prior to that time. She also worked to tell the stories and experiences of front line soldiers during World War I, one of the first women to travel to the Belgian front lines.
Biography from Wikipedia, CC BY-SA 4.0. Photo via Wikimedia Commons.
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Sources: book lists and dates from Wikidata and Open Library, ratings from Open Library readers, free texts from Project Gutenberg. Last updated September 2026.













