E. X. Giroux, the pseudonym of Doris Shannon (August 7, 1924 – August 13, 2012), who also wrote under her own name, was a U.S.-born Canadian writer of mystery novels set in the United Kingdom. Her published work appeared in two series of 10 novels each between 1972 and 1993. Earlier, between 1942 and 1949, she worked as a clerk for the Royal Bank of Canada in Napanee, Ontario, and Vancouver, British Columbia.
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