[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
March in England is spring. Early in the month masses of snowdrops lined the paths in Hyde Park. The grass was green, the roads hard and dry under the eager feet of Kitchener’s great army. For months they had been drilling, struggling with the intricacies of a new career, working and waiting. And now it was spring, and soon they would be off. Some had already gone.
“Lucky beggars!” said the ones who remained, and counted the days.