[crutledge]

Mary Roberts Rinehart (August 12, 1876-September 22, 1958) was a prolific author often called the American Agatha Christie.[1] She is considered the source of the phrase "The butler did it", although she did not actually use the phrase herself, and also considered to have invented the "Had-I-But-Known" school of mystery writing.

Excerpt
The rather extraordinary story revealed by the experiments of the Neighborhood Club have been until now a matter only of private record. But it seems to me, as an active participant in the investigations, that they should be given to the public; not so much for what they will add to the existing data on psychical research, for from that angle they were not unusual, but as yet another exploration into that still uncharted territory, the human mind.