Dupin also appeared in two later stories, "The Mystery of Marie Roget" and "The Purloined Letter."

VOA: special.2009.02.02

He also left John a letter.

VOA: special.2010.06.26

on his all-jazz outing, "Expressions." Fans are also treated to "Letter From A Friend."

VOA: standard.2010.04.02

He said the de facto authorities also made reference in a letter to his government about the embassy as a "facility" run by the Brazilians, implying that it does not enjoy diplomatic status.

VOA: standard.2009.09.25