Premise: Welcome to the Jungle is a 2008 hardback graphic novel written by science fiction and fantasy author Jim Butcher and illustrated by Ardian Syaf. Set in the world of Butcher's contemporary fantasy/mystery novel series, "The Dresden Files", "Welcome to the Jungle" was written as a prequel to the first novel, "Storm Front". It was nominated for a Hugo Award in the Best Graphic Novel category.
Hypothesis: Jim Butcher wrote at least one graphic novel prior to 2008.